155344313 has 2 divisors, whose sum is σ = 155344314. Its totient is φ = 155344312.

The previous prime is 155344309. The next prime is 155344339. The reversal of 155344313 is 313443551.

155344313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86918329 + 68425984 = 9323^2 + 8272^2 .

It is a cyclic number.

It is not a de Polignac number, because 155344313 - 2² = 155344309 is a prime.

It is not a weakly prime, because it can be changed into another prime (155344373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77672156 + 77672157.

It is an arithmetic number, because the mean of its divisors is an integer number (77672157).

Almost surely, 2^155344313 is an apocalyptic number.

It is an amenable number.

155344313 is a deficient number, since it is larger than the sum of its proper divisors (1).

155344313 is an equidigital number, since it uses as much as digits as its factorization.

155344313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 29.

The square root of 155344313 is about 12463.7198700869. The cubic root of 155344313 is about 537.5659921138.

Adding to 155344313 its reverse (313443551), we get a palindrome (468787864).

The spelling of 155344313 in words is "one hundred fifty-five million, three hundred forty-four thousand, three hundred thirteen".