142406523 has 12 divisors (see below), whose sum is σ = 235083888. Its totient is φ = 81375120.

The previous prime is 142406479. The next prime is 142406567. The reversal of 142406523 is 325604241.

142406523 is a `hidden beast` number, since 1 + 4 + 2 + 4 + 0 + 652 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (142406479) and next prime (142406567).

It is not a de Polignac number, because 142406523 - 2²² = 138212219 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (142406323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1130148 + ... + 1130273.

It is an arithmetic number, because the mean of its divisors is an integer number (19590324).

Almost surely, 2^142406523 is an apocalyptic number.

142406523 is a deficient number, since it is larger than the sum of its proper divisors (92677365).

142406523 is a wasteful number, since it uses less digits than its factorization.

142406523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2260434 (or 2260431 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 142406523 is about 11933.4204233321. The cubic root of 142406523 is about 522.2077276915.

The spelling of 142406523 in words is "one hundred forty-two million, four hundred six thousand, five hundred twenty-three".