1064631845 has 16 divisors (see below), whose sum is σ = 1348392000. Its totient is φ = 804722688.

The previous prime is 1064631823. The next prime is 1064631877. The reversal of 1064631845 is 5481364601.

It is a cyclic number.

It is not a de Polignac number, because 1064631845 - 2²² = 1060437541 is a prime.

It is a super-2 number, since 2×1064631845² = 2266881930776208050, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1064631799 and 1064631808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21221 + ... + 50789.

It is an arithmetic number, because the mean of its divisors is an integer number (84274500).

Almost surely, 2^1064631845 is an apocalyptic number.

It is an amenable number.

1064631845 is a deficient number, since it is larger than the sum of its proper divisors (283760155).

1064631845 is a wasteful number, since it uses less digits than its factorization.

1064631845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29972.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 1064631845 is about 32628.6966488090. The cubic root of 1064631845 is about 1021.0957866827.

The spelling of 1064631845 in words is "one billion, sixty-four million, six hundred thirty-one thousand, eight hundred forty-five".