155265023 has 2 divisors, whose sum is σ = 155265024. Its totient is φ = 155265022.

The previous prime is 155264951. The next prime is 155265053. The reversal of 155265023 is 320562551.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 155265023 - 2¹⁶ = 155199487 is a prime.

It is equal to p_8723612 and since 155265023 and 8723612 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155265053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77632511 + 77632512.

It is an arithmetic number, because the mean of its divisors is an integer number (77632512).

Almost surely, 2^155265023 is an apocalyptic number.

155265023 is a deficient number, since it is larger than the sum of its proper divisors (1).

155265023 is an equidigital number, since it uses as much as digits as its factorization.

155265023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 155265023 is about 12460.5386320175. The cubic root of 155265023 is about 537.4745160443.

The spelling of 155265023 in words is "one hundred fifty-five million, two hundred sixty-five thousand, twenty-three".