142612490 has 16 divisors (see below), whose sum is σ = 271802952. Its totient is φ = 53689344.

The previous prime is 142612451. The next prime is 142612501. The reversal of 142612490 is 94216241.

It can be written as a sum of positive squares in 4 ways, for example, as 99460729 + 43151761 = 9973^2 + 6569^2 .

It is a Curzon 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, 419279 + ... + 419618.

Almost surely, 2^142612490 is an apocalyptic number.

142612490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142612490 is a deficient number, since it is larger than the sum of its proper divisors (129190462).

142612490 is a wasteful number, since it uses less digits than its factorization.

142612490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838921.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 142612490 is about 11942.0471444388. The cubic root of 142612490 is about 522.4593681918.

The spelling of 142612490 in words is "one hundred forty-two million, six hundred twelve thousand, four hundred ninety".