1051431604 has 12 divisors (see below), whose sum is σ = 1840273344. Its totient is φ = 525639224.

The previous prime is 1051431583. The next prime is 1051431607. The reversal of 1051431604 is 4061341501.

It is a super-2 number, since 2×1051431604² = 2211016835780025632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051431607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21189 + ... + 50515.

It is an arithmetic number, because the mean of its divisors is an integer number (153356112).

Almost surely, 2^1051431604 is an apocalyptic number.

It is an amenable number.

1051431604 is a deficient number, since it is larger than the sum of its proper divisors (788841740).

1051431604 is a wasteful number, since it uses less digits than its factorization.

1051431604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38294 (or 38292 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1051431604 is about 32425.7860968705. The cubic root of 1051431604 is about 1016.8580762722.

The spelling of 1051431604 in words is "one billion, fifty-one million, four hundred thirty-one thousand, six hundred four".