142180904 has 8 divisors (see below), whose sum is σ = 266589210. Its totient is φ = 71090448.

The previous prime is 142180897. The next prime is 142180921. The reversal of 142180904 is 409081241.

It can be written as a sum of positive squares in only one way, i.e., 136936804 + 5244100 = 11702^2 + 2290^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8886299 + ... + 8886314.

Almost surely, 2^142180904 is an apocalyptic number.

It is an amenable number.

142180904 is a deficient number, since it is larger than the sum of its proper divisors (124408306).

142180904 is a wasteful number, since it uses less digits than its factorization.

142180904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17772619 (or 17772615 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 142180904 is about 11923.9634350328. The cubic root of 142180904 is about 521.9317987065.

The spelling of 142180904 in words is "one hundred forty-two million, one hundred eighty thousand, nine hundred four".