45142025 has 12 divisors (see below), whose sum is σ = 57342684. Its totient is φ = 35232000.

The previous prime is 45142007. The next prime is 45142033. The reversal of 45142025 is 52024154.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 6739216 + 38402809 = 2596^2 + 6197^2 .

It is a de Polignac number, because none of the positive numbers 2^k-45142025 is a prime.

It is a super-2 number, since 2×45142025² = 4075604842201250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20996 + ... + 23045.

It is an arithmetic number, because the mean of its divisors is an integer number (4778557).

Almost surely, 2^45142025 is an apocalyptic number.

It is an amenable number.

45142025 is a deficient number, since it is larger than the sum of its proper divisors (12200659).

45142025 is a wasteful number, since it uses less digits than its factorization.

45142025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44092 (or 44087 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 45142025 is about 6718.7815115540. The cubic root of 45142025 is about 356.0631358166.

Adding to 45142025 its reverse (52024154), we get a palindrome (97166179).

The spelling of 45142025 in words is "forty-five million, one hundred forty-two thousand, twenty-five".