42252147 has 12 divisors (see below), whose sum is σ = 69749680. Its totient is φ = 24144048.

The previous prime is 42252137. The next prime is 42252151. The reversal of 42252147 is 74125224.

It is not a de Polignac number, because 42252147 - 2⁷ = 42252019 is a prime.

It is a super-2 number, since 2×42252147² = 3570487852219218, which contains 22 as substring.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 42252147.

It is not an unprimeable number, because it can be changed into a prime (42252137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 335272 + ... + 335397.

Almost surely, 2^42252147 is an apocalyptic number.

42252147 is a deficient number, since it is larger than the sum of its proper divisors (27497533).

42252147 is a wasteful number, since it uses less digits than its factorization.

42252147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670682 (or 670679 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 42252147 is about 6500.1651517481. The cubic root of 42252147 is about 348.2968879451.

The spelling of 42252147 in words is "forty-two million, two hundred fifty-two thousand, one hundred forty-seven".