73331157 has 4 divisors (see below), whose sum is σ = 97774880. Its totient is φ = 48887436.

The previous prime is 73331123. The next prime is 73331179. The reversal of 73331157 is 75113337.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 73331157 - 2¹⁰ = 73330133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73331057) 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, 12221857 + ... + 12221862.

It is an arithmetic number, because the mean of its divisors is an integer number (24443720).

Almost surely, 2^73331157 is an apocalyptic number.

It is an amenable number.

73331157 is a deficient number, since it is larger than the sum of its proper divisors (24443723).

73331157 is a wasteful number, since it uses less digits than its factorization.

73331157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24443722.

The product of its digits is 6615, while the sum is 30.

The square root of 73331157 is about 8563.3613143438. The cubic root of 73331157 is about 418.5649378441.

The spelling of 73331157 in words is "seventy-three million, three hundred thirty-one thousand, one hundred fifty-seven".