45153985 has 16 divisors (see below), whose sum is σ = 55184976. Its totient is φ = 35463168.

The previous prime is 45153973. The next prime is 45154007. The reversal of 45153985 is 58935154.

It can be written as a sum of positive squares in 8 ways, for example, as 944784 + 44209201 = 972^2 + 6649^2 .

It is a cyclic number.

It is not a de Polignac number, because 45153985 - 2²¹ = 43056833 is a prime.

It is a super-2 number, since 2×45153985² = 4077764722760450, which contains 22 as substring.

It is a Duffinian number.

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, 75849 + ... + 76441.

It is an arithmetic number, because the mean of its divisors is an integer number (3449061).

Almost surely, 2^45153985 is an apocalyptic number.

It is an amenable number.

45153985 is a deficient number, since it is larger than the sum of its proper divisors (10030991).

45153985 is a wasteful number, since it uses less digits than its factorization.

45153985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852.

The product of its digits is 108000, while the sum is 40.

The square root of 45153985 is about 6719.6714949468. The cubic root of 45153985 is about 356.0945783514.

The spelling of 45153985 in words is "forty-five million, one hundred fifty-three thousand, nine hundred eighty-five".