1072923172537 has 2 divisors, whose sum is σ = 1072923172538. Its totient is φ = 1072923172536.

The previous prime is 1072923172523. The next prime is 1072923172543. The reversal of 1072923172537 is 7352713292701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 955367450041 + 117555722496 = 977429^2 + 342864^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1072923172537 is a prime.

It is a super-2 number, since 2×1072923172537² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1072923172567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536461586268 + 536461586269.

It is an arithmetic number, because the mean of its divisors is an integer number (536461586269).

Almost surely, 2^{1072923172537} is an apocalyptic number.

It is an amenable number.

1072923172537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072923172537 is an equidigital number, since it uses as much as digits as its factorization.

1072923172537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1111320, while the sum is 49.

The spelling of 1072923172537 in words is "one trillion, seventy-two billion, nine hundred twenty-three million, one hundred seventy-two thousand, five hundred thirty-seven".