142748136 has 64 divisors (see below), whose sum is σ = 397526400. Its totient is φ = 47462400.

The previous prime is 142748129. The next prime is 142748141. The reversal of 142748136 is 631847241.

142748136 is a `hidden beast` number, since 142 + 7 + 481 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 142748136.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137941 + ... + 138971.

It is an arithmetic number, because the mean of its divisors is an integer number (6211350).

Almost surely, 2^142748136 is an apocalyptic number.

It is an amenable number.

142748136 is an abundant number, since it is smaller than the sum of its proper divisors (254778264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142748136 is a wasteful number, since it uses less digits than its factorization.

142748136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687 (or 1677 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 142748136 is about 11947.7251391217. The cubic root of 142748136 is about 522.6249616030.

It can be divided in two parts, 142748 and 136, that added together give a square (142884 = 378²).

The spelling of 142748136 in words is "one hundred forty-two million, seven hundred forty-eight thousand, one hundred thirty-six".