152744393 has 4 divisors (see below), whose sum is σ = 156469908. Its totient is φ = 149018880.

The previous prime is 152744353. The next prime is 152744411. The reversal of 152744393 is 393447251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 393447251 = 1523 ⋅258337.

It can be written as a sum of positive squares in 2 ways, for example, as 36385024 + 116359369 = 6032^2 + 10787^2 .

It is a cyclic number.

It is not a de Polignac number, because 152744393 - 2⁶ = 152744329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152744323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1862696 + ... + 1862777.

It is an arithmetic number, because the mean of its divisors is an integer number (39117477).

Almost surely, 2^152744393 is an apocalyptic number.

It is an amenable number.

152744393 is a deficient number, since it is larger than the sum of its proper divisors (3725515).

152744393 is an equidigital number, since it uses as much as digits as its factorization.

152744393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3725514.

The product of its digits is 90720, while the sum is 38.

The square root of 152744393 is about 12358.9802572866. The cubic root of 152744393 is about 534.5501129551.

The spelling of 152744393 in words is "one hundred fifty-two million, seven hundred forty-four thousand, three hundred ninety-three".