142154632 has 8 divisors (see below), whose sum is σ = 266539950. Its totient is φ = 71077312.

The previous prime is 142154591. The next prime is 142154633. The reversal of 142154632 is 236451241.

It can be written as a sum of positive squares in only one way, i.e., 137968516 + 4186116 = 11746^2 + 2046^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 142154632.

It is not an unprimeable number, because it can be changed into a prime (142154633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8884657 + ... + 8884672.

Almost surely, 2^142154632 is an apocalyptic number.

It is an amenable number.

142154632 is a deficient number, since it is larger than the sum of its proper divisors (124385318).

142154632 is a wasteful number, since it uses less digits than its factorization.

142154632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17769335 (or 17769331 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 142154632 is about 11922.8617370160. The cubic root of 142154632 is about 521.8996494363.

The spelling of 142154632 in words is "one hundred forty-two million, one hundred fifty-four thousand, six hundred thirty-two".