72075122 has 16 divisors (see below), whose sum is σ = 123771840. Its totient is φ = 30835728.

The previous prime is 72075119. The next prime is 72075127. The reversal of 72075122 is 22157027.

It is a super-2 number, since 2×72075122² = 10389646422629768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72075091 and 72075100.

It is not an unprimeable number, because it can be changed into a prime (72075127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4508 + ... + 12824.

It is an arithmetic number, because the mean of its divisors is an integer number (7735740).

Almost surely, 2^72075122 is an apocalyptic number.

72075122 is a deficient number, since it is larger than the sum of its proper divisors (51696718).

72075122 is a wasteful number, since it uses less digits than its factorization.

72075122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8945.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 72075122 is about 8489.7068265047. The cubic root of 72075122 is about 416.1613995578.

The spelling of 72075122 in words is "seventy-two million, seventy-five thousand, one hundred twenty-two".