45452146 has 4 divisors (see below), whose sum is σ = 68178222. Its totient is φ = 22726072.

The previous prime is 45452131. The next prime is 45452189. The reversal of 45452146 is 64125454.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64125454 = 2 ⋅32062727.

It can be written as a sum of positive squares in only one way, i.e., 45414121 + 38025 = 6739^2 + 195^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11363035 + ... + 11363038.

Almost surely, 2^45452146 is an apocalyptic number.

45452146 is a deficient number, since it is larger than the sum of its proper divisors (22726076).

45452146 is a wasteful number, since it uses less digits than its factorization.

45452146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22726075.

The product of its digits is 19200, while the sum is 31.

The square root of 45452146 is about 6741.8206739723. The cubic root of 45452146 is about 356.8766479293.

The spelling of 45452146 in words is "forty-five million, four hundred fifty-two thousand, one hundred forty-six".