1045020431 has 8 divisors (see below), whose sum is σ = 1286179104. Its totient is φ = 826829280.

The previous prime is 1045020391. The next prime is 1045020439. The reversal of 1045020431 is 1340205401.

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 1045020431 - 2⁶ = 1045020367 is a prime.

It is a super-2 number, since 2×1045020431² = 2184135402414851522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045020439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5741780 + ... + 5741961.

It is an arithmetic number, because the mean of its divisors is an integer number (160772388).

Almost surely, 2^1045020431 is an apocalyptic number.

1045020431 is a deficient number, since it is larger than the sum of its proper divisors (241158673).

1045020431 is a wasteful number, since it uses less digits than its factorization.

1045020431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11483761.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1045020431 is about 32326.7757594227. The cubic root of 1045020431 is about 1014.7870749782.

Adding to 1045020431 its reverse (1340205401), we get a palindrome (2385225832).

The spelling of 1045020431 in words is "one billion, forty-five million, twenty thousand, four hundred thirty-one".