73532138 has 8 divisors (see below), whose sum is σ = 110335332. Its totient is φ = 36753696.

The previous prime is 73532131. The next prime is 73532149. The reversal of 73532138 is 83123537.

It can be written as a sum of positive squares in 2 ways, for example, as 64272289 + 9259849 = 8017^2 + 3043^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (73532131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6206 + ... + 13622.

Almost surely, 2^73532138 is an apocalyptic number.

73532138 is a deficient number, since it is larger than the sum of its proper divisors (36803194).

73532138 is a wasteful number, since it uses less digits than its factorization.

73532138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12376.

The product of its digits is 15120, while the sum is 32.

The square root of 73532138 is about 8575.0882211205. The cubic root of 73532138 is about 418.9469803784.

The spelling of 73532138 in words is "seventy-three million, five hundred thirty-two thousand, one hundred thirty-eight".