45405155 has 16 divisors (see below), whose sum is σ = 59335200. Its totient is φ = 33223680.

The previous prime is 45405137. The next prime is 45405169. The reversal of 45405155 is 55150454.

It is a happy number.

It is not a de Polignac number, because 45405155 - 2⁶ = 45405091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5486 + ... + 10995.

It is an arithmetic number, because the mean of its divisors is an integer number (3708450).

Almost surely, 2^45405155 is an apocalyptic number.

45405155 is a deficient number, since it is larger than the sum of its proper divisors (13930045).

45405155 is a wasteful number, since it uses less digits than its factorization.

45405155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16534.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 45405155 is about 6738.3347349327. The cubic root of 45405155 is about 356.7536190985.

The spelling of 45405155 in words is "forty-five million, four hundred five thousand, one hundred fifty-five".