45143146 has 4 divisors (see below), whose sum is σ = 67714722. Its totient is φ = 22571572.

The previous prime is 45143129. The next prime is 45143167. The reversal of 45143146 is 64134154.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 45037521 + 105625 = 6711^2 + 325^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11285785 + ... + 11285788.

Almost surely, 2^45143146 is an apocalyptic number.

45143146 is a deficient number, since it is larger than the sum of its proper divisors (22571576).

45143146 is a wasteful number, since it uses less digits than its factorization.

45143146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22571575.

The product of its digits is 5760, while the sum is 28.

The square root of 45143146 is about 6718.8649339007. The cubic root of 45143146 is about 356.0660831329.

The spelling of 45143146 in words is "forty-five million, one hundred forty-three thousand, one hundred forty-six".