1072012645 has 16 divisors (see below), whose sum is σ = 1420276032. Its totient is φ = 770248960.

The previous prime is 1072012631. The next prime is 1072012649. The reversal of 1072012645 is 5462102701.

It is not a de Polignac number, because 1072012645 - 2⁹ = 1072012133 is a prime.

It is a super-2 number, since 2×1072012645² = 2298422222079792050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1072012649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112852 + ... + 121981.

It is an arithmetic number, because the mean of its divisors is an integer number (88767252).

Almost surely, 2^1072012645 is an apocalyptic number.

It is an amenable number.

1072012645 is a deficient number, since it is larger than the sum of its proper divisors (348263387).

1072012645 is a wasteful number, since it uses less digits than its factorization.

1072012645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234932.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 1072012645 is about 32741.6041909983. The cubic root of 1072012645 is about 1023.4500134569.

The spelling of 1072012645 in words is "one billion, seventy-two million, twelve thousand, six hundred forty-five".