152390449 has 4 divisors (see below), whose sum is σ = 152460400. Its totient is φ = 152320500.

The previous prime is 152390417. The next prime is 152390473. The reversal of 152390449 is 944093251.

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 a cyclic number.

It is not a de Polignac number, because 152390449 - 2⁵ = 152390417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152390489) 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, 31599 + ... + 36100.

It is an arithmetic number, because the mean of its divisors is an integer number (38115100).

Almost surely, 2^152390449 is an apocalyptic number.

It is an amenable number.

152390449 is a deficient number, since it is larger than the sum of its proper divisors (69951).

152390449 is an equidigital number, since it uses as much as digits as its factorization.

152390449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69950.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 152390449 is about 12344.6526480092. The cubic root of 152390449 is about 534.1369016406.

The spelling of 152390449 in words is "one hundred fifty-two million, three hundred ninety thousand, four hundred forty-nine".