155320546 has 16 divisors (see below), whose sum is σ = 240397920. Its totient is φ = 75215520.

The previous prime is 155320511. The next prime is 155320547. The reversal of 155320546 is 645023551.

It is not an unprimeable number, because it can be changed into a prime (155320547) 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, 4585 + ... + 18211.

It is an arithmetic number, because the mean of its divisors is an integer number (15024870).

Almost surely, 2^155320546 is an apocalyptic number.

155320546 is a deficient number, since it is larger than the sum of its proper divisors (85077374).

155320546 is a wasteful number, since it uses less digits than its factorization.

155320546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13809.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 155320546 is about 12462.7663863205. The cubic root of 155320546 is about 537.5385756342.

The spelling of 155320546 in words is "one hundred fifty-five million, three hundred twenty thousand, five hundred forty-six".