12155053237 has 2 divisors, whose sum is σ = 12155053238. Its totient is φ = 12155053236.

The previous prime is 12155053201. The next prime is 12155053247. The reversal of 12155053237 is 73235055121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8200026916 + 3955026321 = 90554^2 + 62889^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12155053237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12155053247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6077526618 + 6077526619.

It is an arithmetic number, because the mean of its divisors is an integer number (6077526619).

Almost surely, 2^12155053237 is an apocalyptic number.

It is an amenable number.

12155053237 is a deficient number, since it is larger than the sum of its proper divisors (1).

12155053237 is an equidigital number, since it uses as much as digits as its factorization.

12155053237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31500, while the sum is 34.

The spelling of 12155053237 in words is "twelve billion, one hundred fifty-five million, fifty-three thousand, two hundred thirty-seven".