142976403 has 6 divisors (see below), whose sum is σ = 206521484. Its totient is φ = 95317596.

The previous prime is 142976363. The next prime is 142976437. The reversal of 142976403 is 304679241.

142976403 is a `hidden beast` number, since 1 + 4 + 2 + 9 + 7 + 640 + 3 = 666.

It is not a de Polignac number, because 142976403 - 2⁸ = 142976147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142976803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7943125 + ... + 7943142.

Almost surely, 2^142976403 is an apocalyptic number.

142976403 is a deficient number, since it is larger than the sum of its proper divisors (63545081).

142976403 is a wasteful number, since it uses less digits than its factorization.

142976403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15886273 (or 15886270 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 142976403 is about 11957.2740622602. The cubic root of 142976403 is about 522.9033878870.

The spelling of 142976403 in words is "one hundred forty-two million, nine hundred seventy-six thousand, four hundred three".