155095397 has 2 divisors, whose sum is σ = 155095398. Its totient is φ = 155095396.

The previous prime is 155095373. The next prime is 155095399. The reversal of 155095397 is 793590551.

155095397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118504996 + 36590401 = 10886^2 + 6049^2 .

It is a cyclic number.

It is not a de Polignac number, because 155095397 - 2¹² = 155091301 is a prime.

Together with 155095399, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155095399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77547698 + 77547699.

It is an arithmetic number, because the mean of its divisors is an integer number (77547699).

Almost surely, 2^155095397 is an apocalyptic number.

It is an amenable number.

155095397 is a deficient number, since it is larger than the sum of its proper divisors (1).

155095397 is an equidigital number, since it uses as much as digits as its factorization.

155095397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 212625, while the sum is 44.

The square root of 155095397 is about 12453.7302443886. The cubic root of 155095397 is about 537.2787156178.

The spelling of 155095397 in words is "one hundred fifty-five million, ninety-five thousand, three hundred ninety-seven".