155513113 has 16 divisors (see below), whose sum is σ = 182793600. Its totient is φ = 132241200.

The previous prime is 155513089. The next prime is 155513129. The reversal of 155513113 is 311315551.

It is a happy number.

It is not a de Polignac number, because 155513113 - 2⁹ = 155512601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155513173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43203 + ... + 46663.

It is an arithmetic number, because the mean of its divisors is an integer number (11424600).

Almost surely, 2^155513113 is an apocalyptic number.

It is an amenable number.

155513113 is a deficient number, since it is larger than the sum of its proper divisors (27280487).

155513113 is an equidigital number, since it uses as much as digits as its factorization.

155513113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3613 (or 3599 counting only the distinct ones).

The product of its digits is 1125, while the sum is 25.

The square root of 155513113 is about 12470.4896856539. The cubic root of 155513113 is about 537.7606313435.

Adding to 155513113 its reverse (311315551), we get a palindrome (466828664).

The spelling of 155513113 in words is "one hundred fifty-five million, five hundred thirteen thousand, one hundred thirteen".