152916649 has 4 divisors (see below), whose sum is σ = 161911764. Its totient is φ = 143921536.

The previous prime is 152916641. The next prime is 152916653. The reversal of 152916649 is 946619251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 946619251 = 73 ⋅12967387.

It can be written as a sum of positive squares in 2 ways, for example, as 46826649 + 106090000 = 6843^2 + 10300^2 .

It is a cyclic number.

It is not a de Polignac number, because 152916649 - 2³ = 152916641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152916641) 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, 4497532 + ... + 4497565.

It is an arithmetic number, because the mean of its divisors is an integer number (40477941).

Almost surely, 2^152916649 is an apocalyptic number.

It is an amenable number.

152916649 is a deficient number, since it is larger than the sum of its proper divisors (8995115).

152916649 is an equidigital number, since it uses as much as digits as its factorization.

152916649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8995114.

The product of its digits is 116640, while the sum is 43.

The square root of 152916649 is about 12365.9471533724. The cubic root of 152916649 is about 534.7509820240.

The spelling of 152916649 in words is "one hundred fifty-two million, nine hundred sixteen thousand, six hundred forty-nine".