155351913 has 16 divisors (see below), whose sum is σ = 218250240. Its totient is φ = 98098704.

The previous prime is 155351891. The next prime is 155351921. The reversal of 155351913 is 319153551.

155351913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 155351913 - 2¹² = 155347817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155351953) 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, 3823 + ... + 18036.

It is an arithmetic number, because the mean of its divisors is an integer number (13640640).

Almost surely, 2^155351913 is an apocalyptic number.

It is an amenable number.

155351913 is a deficient number, since it is larger than the sum of its proper divisors (62898327).

155351913 is a wasteful number, since it uses less digits than its factorization.

155351913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21988.

The product of its digits is 10125, while the sum is 33.

The square root of 155351913 is about 12464.0247512591. The cubic root of 155351913 is about 537.5747585218.

The spelling of 155351913 in words is "one hundred fifty-five million, three hundred fifty-one thousand, nine hundred thirteen".