152245509 has 16 divisors (see below), whose sum is σ = 219912000. Its totient is φ = 93685488.

The previous prime is 152245469. The next prime is 152245517. The reversal of 152245509 is 905542251.

It is not a de Polignac number, because 152245509 - 2⁷ = 152245381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 152245509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152245559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4959 + ... + 18140.

It is an arithmetic number, because the mean of its divisors is an integer number (13744500).

Almost surely, 2^152245509 is an apocalyptic number.

It is an amenable number.

152245509 is a deficient number, since it is larger than the sum of its proper divisors (67666491).

152245509 is an equidigital number, since it uses as much as digits as its factorization.

152245509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23141 (or 23115 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 152245509 is about 12338.7806934073. The cubic root of 152245509 is about 533.9675070355.

The spelling of 152245509 in words is "one hundred fifty-two million, two hundred forty-five thousand, five hundred nine".