72015074 has 4 divisors (see below), whose sum is σ = 108022614. Its totient is φ = 36007536.

The previous prime is 72015059. The next prime is 72015089. The reversal of 72015074 is 47051027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47051027 = 229 ⋅205463.

It is an interprime number because it is at equal distance from previous prime (72015059) and next prime (72015089).

It can be written as a sum of positive squares in only one way, i.e., 69839449 + 2175625 = 8357^2 + 1475^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18003767 + ... + 18003770.

Almost surely, 2^72015074 is an apocalyptic number.

72015074 is a deficient number, since it is larger than the sum of its proper divisors (36007540).

72015074 is a wasteful number, since it uses less digits than its factorization.

72015074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36007539.

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

The square root of 72015074 is about 8486.1695717208. The cubic root of 72015074 is about 416.0457951619.

The spelling of 72015074 in words is "seventy-two million, fifteen thousand, seventy-four".