72148990 has 16 divisors (see below), whose sum is σ = 129989952. Its totient is φ = 28832544.

The previous prime is 72148987. The next prime is 72149027. The reversal of 72148990 is 9984127.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10552 + ... + 15988.

It is an arithmetic number, because the mean of its divisors is an integer number (8124372).

Almost surely, 2^72148990 is an apocalyptic number.

72148990 is a deficient number, since it is larger than the sum of its proper divisors (57840962).

72148990 is a wasteful number, since it uses less digits than its factorization.

72148990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6771.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 72148990 is about 8494.0561571019. The cubic root of 72148990 is about 416.3035221723.

The spelling of 72148990 in words is "seventy-two million, one hundred forty-eight thousand, nine hundred ninety".