72650132 has 6 divisors (see below), whose sum is σ = 127137738. Its totient is φ = 36325064.

The previous prime is 72650107. The next prime is 72650147. The reversal of 72650132 is 23105627.

It can be written as a sum of positive squares in only one way, i.e., 47389456 + 25260676 = 6884^2 + 5026^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9081263 + ... + 9081270.

It is an arithmetic number, because the mean of its divisors is an integer number (21189623).

Almost surely, 2^72650132 is an apocalyptic number.

It is an amenable number.

72650132 is a deficient number, since it is larger than the sum of its proper divisors (54487606).

72650132 is a wasteful number, since it uses less digits than its factorization.

72650132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18162537 (or 18162535 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 72650132 is about 8523.5046782412. The cubic root of 72650132 is about 417.2651711080.

Adding to 72650132 its reverse (23105627), we get a palindrome (95755759).

The spelling of 72650132 in words is "seventy-two million, six hundred fifty thousand, one hundred thirty-two".