2151131596837 has 2 divisors, whose sum is σ = 2151131596838. Its totient is φ = 2151131596836.

The previous prime is 2151131596829. The next prime is 2151131596871. The reversal of 2151131596837 is 7386951311512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2135102517601 + 16029079236 = 1461199^2 + 126606^2 .

It is a cyclic number.

It is not a de Polignac number, because 2151131596837 - 2³ = 2151131596829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2151131593837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075565798418 + 1075565798419.

It is an arithmetic number, because the mean of its divisors is an integer number (1075565798419).

Almost surely, 2^{2151131596837} is an apocalyptic number.

It is an amenable number.

2151131596837 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151131596837 is an equidigital number, since it uses as much as digits as its factorization.

2151131596837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1360800, while the sum is 52.

The spelling of 2151131596837 in words is "two trillion, one hundred fifty-one billion, one hundred thirty-one million, five hundred ninety-six thousand, eight hundred thirty-seven".