1022525431 has 4 divisors (see below), whose sum is σ = 1023203664. Its totient is φ = 1021847200.

The previous prime is 1022525429. The next prime is 1022525437. The reversal of 1022525431 is 1345252201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1345252201 = 53 ⋅25382117.

It is a cyclic number.

It is not a de Polignac number, because 1022525431 - 2¹ = 1022525429 is a prime.

It is a super-2 number, since 2×1022525431² = 2091116514083471522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022525396 and 1022525405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022525437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336850 + ... + 339871.

It is an arithmetic number, because the mean of its divisors is an integer number (255800916).

Almost surely, 2^1022525431 is an apocalyptic number.

1022525431 is a deficient number, since it is larger than the sum of its proper divisors (678233).

1022525431 is an equidigital number, since it uses as much as digits as its factorization.

1022525431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678232.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1022525431 is about 31976.9515588963. The cubic root of 1022525431 is about 1007.4527948624.

Adding to 1022525431 its reverse (1345252201), we get a palindrome (2367777632).

It can be divided in two parts, 102252543 and 1, that added together give a square (102252544 = 10112²).

The spelling of 1022525431 in words is "one billion, twenty-two million, five hundred twenty-five thousand, four hundred thirty-one".