2972757531 has 8 divisors (see below), whose sum is σ = 3964080960. Its totient is φ = 1981636232.

The previous prime is 2972757509. The next prime is 2972757533. The reversal of 2972757531 is 1357572792.

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 2972757531 - 2⁹ = 2972757019 is a prime.

It is a super-3 number, since 3×2972757531³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2972757533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12021 + ... + 78038.

It is an arithmetic number, because the mean of its divisors is an integer number (495510120).

Almost surely, 2^2972757531 is an apocalyptic number.

2972757531 is a deficient number, since it is larger than the sum of its proper divisors (991323429).

2972757531 is a wasteful number, since it uses less digits than its factorization.

2972757531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101065.

The product of its digits is 926100, while the sum is 48.

The square root of 2972757531 is about 54523.0000183409. Note that the first 4 decimals coincide. The cubic root of 2972757531 is about 1437.8706844522.

The spelling of 2972757531 in words is "two billion, nine hundred seventy-two million, seven hundred fifty-seven thousand, five hundred thirty-one".