152740823 has 4 divisors (see below), whose sum is σ = 152768640. Its totient is φ = 152713008.

The previous prime is 152740811. The next prime is 152740843. The reversal of 152740823 is 328047251.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 152740823 - 2¹⁶ = 152675287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 152740823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152740843) 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, 2615 + ... + 17672.

It is an arithmetic number, because the mean of its divisors is an integer number (38192160).

Almost surely, 2^152740823 is an apocalyptic number.

152740823 is a deficient number, since it is larger than the sum of its proper divisors (27817).

152740823 is an equidigital number, since it uses as much as digits as its factorization.

152740823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27816.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 152740823 is about 12358.8358270510. The cubic root of 152740823 is about 534.5459483532.

The spelling of 152740823 in words is "one hundred fifty-two million, seven hundred forty thousand, eight hundred twenty-three".