45403155 has 72 divisors (see below), whose sum is σ = 93366000. Its totient is φ = 20345472.

The previous prime is 45403147. The next prime is 45403157. The reversal of 45403155 is 55130454.

It is not a de Polignac number, because 45403155 - 2³ = 45403147 is a prime.

It is a super-2 number, since 2×45403155² = 4122892967908050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45403157) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 129921 + ... + 130269.

It is an arithmetic number, because the mean of its divisors is an integer number (1296750).

Almost surely, 2^45403155 is an apocalyptic number.

45403155 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

45403155 is an abundant number, since it is smaller than the sum of its proper divisors (47962845).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45403155 is a wasteful number, since it uses less digits than its factorization.

45403155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433 (or 423 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 45403155 is about 6738.1863286793. The cubic root of 45403155 is about 356.7483809435.

The spelling of 45403155 in words is "forty-five million, four hundred three thousand, one hundred fifty-five".