512407142 has 16 divisors (see below), whose sum is σ = 839395872. Its totient is φ = 233163840.

The previous prime is 512407139. The next prime is 512407171. The reversal of 512407142 is 241704215.

It is a super-2 number, since 2×512407142² = 525122158345216328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136943 + ... + 140634.

It is an arithmetic number, because the mean of its divisors is an integer number (52462242).

Almost surely, 2^512407142 is an apocalyptic number.

512407142 is a deficient number, since it is larger than the sum of its proper divisors (326988730).

512407142 is a wasteful number, since it uses less digits than its factorization.

512407142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277663.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 512407142 is about 22636.4118623072. The cubic root of 512407142 is about 800.2119969417.

The spelling of 512407142 in words is "five hundred twelve million, four hundred seven thousand, one hundred forty-two".