155313451 has 2 divisors, whose sum is σ = 155313452. Its totient is φ = 155313450.

The previous prime is 155313443. The next prime is 155313461. The reversal of 155313451 is 154313551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 155313451 - 2³ = 155313443 is a prime.

It is equal to p_8726203 and since 155313451 and 8726203 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (155313401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77656725 + 77656726.

It is an arithmetic number, because the mean of its divisors is an integer number (77656726).

Almost surely, 2^155313451 is an apocalyptic number.

155313451 is a deficient number, since it is larger than the sum of its proper divisors (1).

155313451 is an equidigital number, since it uses as much as digits as its factorization.

155313451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4500, while the sum is 28.

The square root of 155313451 is about 12462.4817351922. The cubic root of 155313451 is about 537.5303906379.

It can be divided in two parts, 15531 and 3451, that multiplied together give a triangular number (53597481 = T₁₀₃₅₃).

The spelling of 155313451 in words is "one hundred fifty-five million, three hundred thirteen thousand, four hundred fifty-one".