152347505 has 4 divisors (see below), whose sum is σ = 182817012. Its totient is φ = 121878000.

The previous prime is 152347501. The next prime is 152347543. The reversal of 152347505 is 505743251.

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

It can be written as a sum of positive squares in 2 ways, for example, as 79637776 + 72709729 = 8924^2 + 8527^2 .

It is not a de Polignac number, because 152347505 - 2² = 152347501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152347501) 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, 15234746 + ... + 15234755.

It is an arithmetic number, because the mean of its divisors is an integer number (45704253).

Almost surely, 2^152347505 is an apocalyptic number.

It is an amenable number.

152347505 is a deficient number, since it is larger than the sum of its proper divisors (30469507).

152347505 is an equidigital number, since it uses as much as digits as its factorization.

152347505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30469506.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 152347505 is about 12342.9131488478. The cubic root of 152347505 is about 534.0867232332.

The spelling of 152347505 in words is "one hundred fifty-two million, three hundred forty-seven thousand, five hundred five".