155905413 has 8 divisors (see below), whose sum is σ = 208051776. Its totient is φ = 103848000.

The previous prime is 155905403. The next prime is 155905423. The reversal of 155905413 is 314509551.

155905413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (155905403) and next prime (155905423).

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

It is not a de Polignac number, because 155905413 - 2⁵ = 155905381 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155905403) 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, 18033 + ... + 25238.

It is an arithmetic number, because the mean of its divisors is an integer number (26006472).

Almost surely, 2^155905413 is an apocalyptic number.

It is an amenable number.

155905413 is a deficient number, since it is larger than the sum of its proper divisors (52146363).

155905413 is a wasteful number, since it uses less digits than its factorization.

155905413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44475.

The product of its (nonzero) digits is 13500, while the sum is 33.

The square root of 155905413 is about 12486.2089122359. The cubic root of 155905413 is about 538.2124396540.

The spelling of 155905413 in words is "one hundred fifty-five million, nine hundred five thousand, four hundred thirteen".