1072745157081 has 32 divisors (see below), whose sum is σ = 1549774356480. Its totient is φ = 656118792000.

The previous prime is 1072745157073. The next prime is 1072745157103. The reversal of 1072745157081 is 1807515472701.

It is not a de Polignac number, because 1072745157081 - 2³ = 1072745157073 is a prime.

It is a super-2 number, since 2×1072745157081² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1072745157081.

It is not an unprimeable number, because it can be changed into a prime (1072745157481) 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 31 ways as a sum of consecutive naturals, for example, 8511240 + ... + 8636358.

It is an arithmetic number, because the mean of its divisors is an integer number (48430448640).

Almost surely, 2^{1072745157081} is an apocalyptic number.

It is an amenable number.

1072745157081 is a deficient number, since it is larger than the sum of its proper divisors (477029199399).

1072745157081 is a wasteful number, since it uses less digits than its factorization.

1072745157081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126477.

The product of its (nonzero) digits is 548800, while the sum is 48.

The spelling of 1072745157081 in words is "one trillion, seventy-two billion, seven hundred forty-five million, one hundred fifty-seven thousand, eighty-one".