152215549 has 4 divisors (see below), whose sum is σ = 157125760. Its totient is φ = 147305340.

The previous prime is 152215507. The next prime is 152215559. The reversal of 152215549 is 945512251.

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, and also an emirpimes, since its reverse is a distinct semiprime: 945512251 = 43 ⋅21988657.

It is a cyclic number.

It is not a de Polignac number, because 152215549 - 2⁷ = 152215421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152215559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2455059 + ... + 2455120.

It is an arithmetic number, because the mean of its divisors is an integer number (39281440).

Almost surely, 2^152215549 is an apocalyptic number.

It is an amenable number.

152215549 is a deficient number, since it is larger than the sum of its proper divisors (4910211).

152215549 is an equidigital number, since it uses as much as digits as its factorization.

152215549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4910210.

The product of its digits is 18000, while the sum is 34.

The square root of 152215549 is about 12337.5665753016. The cubic root of 152215549 is about 533.9324787094.

It can be divided in two parts, 1522 and 15549, that added together give a palindrome (17071).

The spelling of 152215549 in words is "one hundred fifty-two million, two hundred fifteen thousand, five hundred forty-nine".