142551423 has 48 divisors (see below), whose sum is σ = 248242176. Its totient is φ = 77103360.

The previous prime is 142551419. The next prime is 142551469. The reversal of 142551423 is 324155241.

142551423 is a `hidden beast` number, since 142 + 5 + 514 + 2 + 3 = 666.

It is not a de Polignac number, because 142551423 - 2² = 142551419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142551403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 91015 + ... + 92567.

It is an arithmetic number, because the mean of its divisors is an integer number (5171712).

Almost surely, 2^142551423 is an apocalyptic number.

142551423 is a deficient number, since it is larger than the sum of its proper divisors (105690753).

142551423 is a wasteful number, since it uses less digits than its factorization.

142551423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644 (or 1641 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 142551423 is about 11939.4900644877. The cubic root of 142551423 is about 522.3847847728.

The spelling of 142551423 in words is "one hundred forty-two million, five hundred fifty-one thousand, four hundred twenty-three".