142175428 has 6 divisors (see below), whose sum is σ = 248807006. Its totient is φ = 71087712.

The previous prime is 142175399. The next prime is 142175447. The reversal of 142175428 is 824571241.

It can be written as a sum of positive squares in only one way, i.e., 134513604 + 7661824 = 11598^2 + 2768^2 .

It is a junction number, because it is equal to n+sod(n) for n = 142175393 and 142175402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17771925 + ... + 17771932.

Almost surely, 2^142175428 is an apocalyptic number.

It is an amenable number.

142175428 is a deficient number, since it is larger than the sum of its proper divisors (106631578).

142175428 is a wasteful number, since it uses less digits than its factorization.

142175428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35543861 (or 35543859 counting only the distinct ones).

The product of its digits is 17920, while the sum is 34.

The square root of 142175428 is about 11923.7338111852. The cubic root of 142175428 is about 521.9250980054.

The spelling of 142175428 in words is "one hundred forty-two million, one hundred seventy-five thousand, four hundred twenty-eight".