72101282 has 32 divisors (see below), whose sum is σ = 121651200. Its totient is φ = 31767120.

The previous prime is 72101261. The next prime is 72101287. The reversal of 72101282 is 28210127.

It is not an unprimeable number, because it can be changed into a prime (72101287) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 188063 + ... + 188445.

It is an arithmetic number, because the mean of its divisors is an integer number (3801600).

Almost surely, 2^72101282 is an apocalyptic number.

72101282 is a deficient number, since it is larger than the sum of its proper divisors (49549918).

72101282 is a wasteful number, since it uses less digits than its factorization.

72101282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 72101282 is about 8491.2473759749. The cubic root of 72101282 is about 416.2117427046.

The spelling of 72101282 in words is "seventy-two million, one hundred one thousand, two hundred eighty-two".