155251114202389 has 2 divisors, whose sum is σ = 155251114202390. Its totient is φ = 155251114202388.

The previous prime is 155251114202339. The next prime is 155251114202399. The reversal of 155251114202389 is 983202411152551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102691267668900 + 52559846533489 = 10133670^2 + 7249817^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155251114202389 is a prime.

It is a super-2 number, since 2×155251114202389² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155251114202329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77625557101194 + 77625557101195.

It is an arithmetic number, because the mean of its divisors is an integer number (77625557101195).

Almost surely, 2^{155251114202389} is an apocalyptic number.

It is an amenable number.

155251114202389 is a deficient number, since it is larger than the sum of its proper divisors (1).

155251114202389 is an equidigital number, since it uses as much as digits as its factorization.

155251114202389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864000, while the sum is 49.

The spelling of 155251114202389 in words is "one hundred fifty-five trillion, two hundred fifty-one billion, one hundred fourteen million, two hundred two thousand, three hundred eighty-nine".