72159026 has 4 divisors (see below), whose sum is σ = 108238542. Its totient is φ = 36079512.

The previous prime is 72159011. The next prime is 72159037. The reversal of 72159026 is 62095127.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 51136801 + 21022225 = 7151^2 + 4585^2 .

It is a junction number, because it is equal to n+sod(n) for n = 72158983 and 72159001.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18039755 + ... + 18039758.

Almost surely, 2^72159026 is an apocalyptic number.

72159026 is a deficient number, since it is larger than the sum of its proper divisors (36079516).

72159026 is a wasteful number, since it uses less digits than its factorization.

72159026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36079515.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 72159026 is about 8494.6469026087. The cubic root of 72159026 is about 416.3228240292.

The spelling of 72159026 in words is "seventy-two million, one hundred fifty-nine thousand, twenty-six".