142634895 has 64 divisors (see below), whose sum is σ = 255467520. Its totient is φ = 67511808.

The previous prime is 142634861. The next prime is 142634903. The reversal of 142634895 is 598436241.

It is not a de Polignac number, because 142634895 - 2¹⁰ = 142633871 is a prime.

It is a super-2 number, since 2×142634895² = 40689426543322050, which contains 22 as substring.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 723937 + ... + 724133.

It is an arithmetic number, because the mean of its divisors is an integer number (3991680).

Almost surely, 2^142634895 is an apocalyptic number.

142634895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142634895 is a deficient number, since it is larger than the sum of its proper divisors (112832625).

142634895 is a wasteful number, since it uses less digits than its factorization.

142634895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344.

The product of its digits is 207360, while the sum is 42.

The square root of 142634895 is about 11942.9851795939. The cubic root of 142634895 is about 522.4867269203.

The spelling of 142634895 in words is "one hundred forty-two million, six hundred thirty-four thousand, eight hundred ninety-five".