72048146 has 4 divisors (see below), whose sum is σ = 108072222. Its totient is φ = 36024072.

The previous prime is 72048143. The next prime is 72048157. The reversal of 72048146 is 64184027.

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., 61230625 + 10817521 = 7825^2 + 3289^2 .

It is not an unprimeable number, because it can be changed into a prime (72048143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18012035 + ... + 18012038.

Almost surely, 2^72048146 is an apocalyptic number.

72048146 is a deficient number, since it is larger than the sum of its proper divisors (36024076).

72048146 is a wasteful number, since it uses less digits than its factorization.

72048146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36024075.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 72048146 is about 8488.1179303777. The cubic root of 72048146 is about 416.1094733153.

The spelling of 72048146 in words is "seventy-two million, forty-eight thousand, one hundred forty-six".