73138142 has 16 divisors (see below), whose sum is σ = 136778112. Its totient is φ = 28495320.

The previous prime is 73138139. The next prime is 73138171. The reversal of 73138142 is 24183137.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237308 + ... + 237615.

It is an arithmetic number, because the mean of its divisors is an integer number (8548632).

Almost surely, 2^73138142 is an apocalyptic number.

73138142 is a deficient number, since it is larger than the sum of its proper divisors (63639970).

73138142 is a wasteful number, since it uses less digits than its factorization.

73138142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474943.

The product of its digits is 4032, while the sum is 29.

The square root of 73138142 is about 8552.0840734876. The cubic root of 73138142 is about 418.1973801306.

The spelling of 73138142 in words is "seventy-three million, one hundred thirty-eight thousand, one hundred forty-two".