42345147 has 30 divisors (see below), whose sum is σ = 64958412. Its totient is φ = 24525696.

The previous prime is 42345097. The next prime is 42345157. The reversal of 42345147 is 74154324.

It is not a de Polignac number, because 42345147 - 2⁷ = 42345019 is a prime.

It is a super-2 number, since 2×42345147² = 3586222948903218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42345157) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2490883 + ... + 2490899.

Almost surely, 2^42345147 is an apocalyptic number.

42345147 is a deficient number, since it is larger than the sum of its proper divisors (22613265).

42345147 is an frugal number, since it uses more digits than its factorization.

42345147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 33 counting only the distinct ones).

The product of its digits is 13440, while the sum is 30.

The square root of 42345147 is about 6507.3148840363. The cubic root of 42345147 is about 348.5522428125.

The spelling of 42345147 in words is "forty-two million, three hundred forty-five thousand, one hundred forty-seven".