45402155 has 16 divisors (see below), whose sum is σ = 57845664. Its totient is φ = 34091520.

The previous prime is 45402151. The next prime is 45402173. The reversal of 45402155 is 55120454.

It is not a de Polignac number, because 45402155 - 2² = 45402151 is a prime.

It is a super-2 number, since 2×45402155² = 4122711357288050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45402151) 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, 58349 + ... + 59121.

It is an arithmetic number, because the mean of its divisors is an integer number (3615354).

Almost surely, 2^45402155 is an apocalyptic number.

45402155 is a deficient number, since it is larger than the sum of its proper divisors (12443509).

45402155 is a wasteful number, since it uses less digits than its factorization.

45402155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 45402155 is about 6738.1121243268. The cubic root of 45402155 is about 356.7457618084.

The spelling of 45402155 in words is "forty-five million, four hundred two thousand, one hundred fifty-five".