45015188 has 6 divisors (see below), whose sum is σ = 78776586. Its totient is φ = 22507592.

The previous prime is 45015169. The next prime is 45015239. The reversal of 45015188 is 88151054.

It can be written as a sum of positive squares in only one way, i.e., 44782864 + 232324 = 6692^2 + 482^2 .

It is a super-4 number, since 4×45015188⁴ (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5626895 + ... + 5626902.

It is an arithmetic number, because the mean of its divisors is an integer number (13129431).

Almost surely, 2^45015188 is an apocalyptic number.

It is an amenable number.

45015188 is a deficient number, since it is larger than the sum of its proper divisors (33761398).

45015188 is a wasteful number, since it uses less digits than its factorization.

45015188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11253801 (or 11253799 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 45015188 is about 6709.3358836773. The cubic root of 45015188 is about 355.7293423149.

The spelling of 45015188 in words is "forty-five million, fifteen thousand, one hundred eighty-eight".