142867538 has 16 divisors (see below), whose sum is σ = 233985024. Its totient is φ = 64883760.

The previous prime is 142867523. The next prime is 142867553. The reversal of 142867538 is 835768241.

It is an interprime number because it is at equal distance from previous prime (142867523) and next prime (142867553).

It is a super-2 number, since 2×142867538² = 40822266828362888, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34031 + ... + 37997.

It is an arithmetic number, because the mean of its divisors is an integer number (14624064).

Almost surely, 2^142867538 is an apocalyptic number.

142867538 is a deficient number, since it is larger than the sum of its proper divisors (91117486).

142867538 is a wasteful number, since it uses less digits than its factorization.

142867538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5617.

The product of its digits is 322560, while the sum is 44.

The square root of 142867538 is about 11952.7209454584. The cubic root of 142867538 is about 522.7706379357.

The spelling of 142867538 in words is "one hundred forty-two million, eight hundred sixty-seven thousand, five hundred thirty-eight".