42546146 has 4 divisors (see below), whose sum is σ = 63819222. Its totient is φ = 21273072.

The previous prime is 42546137. The next prime is 42546169. The reversal of 42546146 is 64164524.

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., 38502025 + 4044121 = 6205^2 + 2011^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10636535 + ... + 10636538.

Almost surely, 2^42546146 is an apocalyptic number.

42546146 is a deficient number, since it is larger than the sum of its proper divisors (21273076).

42546146 is a wasteful number, since it uses less digits than its factorization.

42546146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21273075.

The product of its digits is 23040, while the sum is 32.

The square root of 42546146 is about 6522.7406816460. The cubic root of 42546146 is about 349.1028615559.

The spelling of 42546146 in words is "forty-two million, five hundred forty-six thousand, one hundred forty-six".