155040513 has 8 divisors (see below), whose sum is σ = 217600800. Its totient is φ = 97920288.

The previous prime is 155040511. The next prime is 155040553. The reversal of 155040513 is 315040551.

155040513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 155040513 - 2¹ = 155040511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155040511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1359948 + ... + 1360061.

It is an arithmetic number, because the mean of its divisors is an integer number (27200100).

Almost surely, 2^155040513 is an apocalyptic number.

It is an amenable number.

155040513 is a deficient number, since it is larger than the sum of its proper divisors (62560287).

155040513 is a wasteful number, since it uses less digits than its factorization.

155040513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2720031.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 155040513 is about 12451.5265329196. The cubic root of 155040513 is about 537.2153320818.

The spelling of 155040513 in words is "one hundred fifty-five million, forty thousand, five hundred thirteen".