142470477 has 12 divisors (see below), whose sum is σ = 206859484. Its totient is φ = 94487040.

The previous prime is 142470473. The next prime is 142470479. The reversal of 142470477 is 774074241.

142470477 is a `hidden beast` number, since 142 + 47 + 0 + 477 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 99620361 + 42850116 = 9981^2 + 6546^2 .

It is not a de Polignac number, because 142470477 - 2² = 142470473 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142470473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39274 + ... + 42747.

Almost surely, 2^142470477 is an apocalyptic number.

It is an amenable number.

142470477 is a deficient number, since it is larger than the sum of its proper divisors (64389007).

142470477 is a wasteful number, since it uses less digits than its factorization.

142470477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82220 (or 82217 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 36.

The square root of 142470477 is about 11936.0997398648. The cubic root of 142470477 is about 522.2858895483.

The spelling of 142470477 in words is "one hundred forty-two million, four hundred seventy thousand, four hundred seventy-seven".