1025430431 has 8 divisors (see below), whose sum is σ = 1058932224. Its totient is φ = 991955160.

The previous prime is 1025430409. The next prime is 1025430433. The reversal of 1025430431 is 1340345201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1025430431 - 2¹⁰ = 1025429407 is a prime.

It is a super-2 number, since 2×1025430431² = 2103015137641691522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1025430397 and 1025430406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025430433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98816 + ... + 108698.

It is an arithmetic number, because the mean of its divisors is an integer number (132366528).

Almost surely, 2^1025430431 is an apocalyptic number.

1025430431 is a deficient number, since it is larger than the sum of its proper divisors (33501793).

1025430431 is an equidigital number, since it uses as much as digits as its factorization.

1025430431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13261.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1025430431 is about 32022.3426844446. The cubic root of 1025430431 is about 1008.4059523108.

Adding to 1025430431 its reverse (1340345201), we get a palindrome (2365775632).

The spelling of 1025430431 in words is "one billion, twenty-five million, four hundred thirty thousand, four hundred thirty-one".