142253870 has 32 divisors (see below), whose sum is σ = 280250496. Its totient is φ = 51559200.

The previous prime is 142253861. The next prime is 142253911. The reversal of 142253870 is 78352241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34457 + ... + 38363.

It is an arithmetic number, because the mean of its divisors is an integer number (8757828).

Almost surely, 2^142253870 is an apocalyptic number.

142253870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142253870 is a deficient number, since it is larger than the sum of its proper divisors (137996626).

142253870 is a wasteful number, since it uses less digits than its factorization.

142253870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4256.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 142253870 is about 11927.0226796129. The cubic root of 142253870 is about 522.0210670534.

The spelling of 142253870 in words is "one hundred forty-two million, two hundred fifty-three thousand, eight hundred seventy".