155061313 has 4 divisors (see below), whose sum is σ = 169157808. Its totient is φ = 140964820.

The previous prime is 155061293. The next prime is 155061317. The reversal of 155061313 is 313160551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 313160551 = 11 ⋅28469141.

It is a cyclic number.

It is not a de Polignac number, because 155061313 - 2⁵ = 155061281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155061317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7048231 + ... + 7048252.

It is an arithmetic number, because the mean of its divisors is an integer number (42289452).

Almost surely, 2^155061313 is an apocalyptic number.

It is an amenable number.

155061313 is a deficient number, since it is larger than the sum of its proper divisors (14096495).

155061313 is a wasteful number, since it uses less digits than its factorization.

155061313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14096494.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 155061313 is about 12452.3617438621. The cubic root of 155061313 is about 537.2393550055.

The spelling of 155061313 in words is "one hundred fifty-five million, sixty-one thousand, three hundred thirteen".