142951636 has 12 divisors (see below), whose sum is σ = 251213760. Its totient is φ = 71176280.

The previous prime is 142951621. The next prime is 142951637. The reversal of 142951636 is 636159241.

It is a junction number, because it is equal to n+sod(n) for n = 142951595 and 142951604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142951637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73810 + ... + 75721.

It is an arithmetic number, because the mean of its divisors is an integer number (20934480).

Almost surely, 2^142951636 is an apocalyptic number.

It is an amenable number.

142951636 is a deficient number, since it is larger than the sum of its proper divisors (108262124).

142951636 is a wasteful number, since it uses less digits than its factorization.

142951636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149774 (or 149772 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

The square root of 142951636 is about 11956.2383716619. The cubic root of 142951636 is about 522.8731929368.

It can be divided in two parts, 14295 and 1636, that added together give a triangular number (15931 = T₁₇₈).

The spelling of 142951636 in words is "one hundred forty-two million, nine hundred fifty-one thousand, six hundred thirty-six".