155345413 has 2 divisors, whose sum is σ = 155345414. Its totient is φ = 155345412.

The previous prime is 155345401. The next prime is 155345429. The reversal of 155345413 is 314543551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155326369 + 19044 = 12463^2 + 138^2 .

It is a cyclic number.

It is not a de Polignac number, because 155345413 - 2⁹ = 155344901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155345453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77672706 + 77672707.

It is an arithmetic number, because the mean of its divisors is an integer number (77672707).

Almost surely, 2^155345413 is an apocalyptic number.

It is an amenable number.

155345413 is a deficient number, since it is larger than the sum of its proper divisors (1).

155345413 is an equidigital number, since it uses as much as digits as its factorization.

155345413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18000, while the sum is 31.

The square root of 155345413 is about 12463.7639980866. The cubic root of 155345413 is about 537.5672609537.

Adding to 155345413 its reverse (314543551), we get a palindrome (469888964).

The spelling of 155345413 in words is "one hundred fifty-five million, three hundred forty-five thousand, four hundred thirteen".