155161349 has 4 divisors (see below), whose sum is σ = 177327264. Its totient is φ = 132995436.

The previous prime is 155161291. The next prime is 155161399. The reversal of 155161349 is 943161551.

155161349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 943161551 = 59 ⋅15985789.

It is not a de Polignac number, because 155161349 - 2⁸ = 155161093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155161399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11082947 + ... + 11082960.

It is an arithmetic number, because the mean of its divisors is an integer number (44331816).

Almost surely, 2^155161349 is an apocalyptic number.

It is an amenable number.

155161349 is a deficient number, since it is larger than the sum of its proper divisors (22165915).

155161349 is an equidigital number, since it uses as much as digits as its factorization.

155161349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22165914.

The product of its digits is 16200, while the sum is 35.

The square root of 155161349 is about 12456.3778443013. The cubic root of 155161349 is about 537.3548614074.

The spelling of 155161349 in words is "one hundred fifty-five million, one hundred sixty-one thousand, three hundred forty-nine".