152731073 has 4 divisors (see below), whose sum is σ = 166615728. Its totient is φ = 138846420.

The previous prime is 152731069. The next prime is 152731091. The reversal of 152731073 is 370137251.

152731073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 370137251 = 11 ⋅33648841.

It is a cyclic number.

It is not a de Polignac number, because 152731073 - 2² = 152731069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (152731003) 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, 6942311 + ... + 6942332.

It is an arithmetic number, because the mean of its divisors is an integer number (41653932).

Almost surely, 2^152731073 is an apocalyptic number.

It is an amenable number.

152731073 is a deficient number, since it is larger than the sum of its proper divisors (13884655).

152731073 is a wasteful number, since it uses less digits than its factorization.

152731073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13884654.

The product of its (nonzero) digits is 4410, while the sum is 29.

The square root of 152731073 is about 12358.4413661270. The cubic root of 152731073 is about 534.5345741098.

The spelling of 152731073 in words is "one hundred fifty-two million, seven hundred thirty-one thousand, seventy-three".