152218649 has 8 divisors (see below), whose sum is σ = 171413760. Its totient is φ = 133916400.

The previous prime is 152218621. The next prime is 152218657. The reversal of 152218649 is 946812251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 152218649 - 2²⁰ = 151170073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152218049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222854 + ... + 223535.

It is an arithmetic number, because the mean of its divisors is an integer number (21426720).

Almost surely, 2^152218649 is an apocalyptic number.

It is an amenable number.

152218649 is a deficient number, since it is larger than the sum of its proper divisors (19195111).

152218649 is a wasteful number, since it uses less digits than its factorization.

152218649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446431.

The product of its digits is 34560, while the sum is 38.

The square root of 152218649 is about 12337.6922072161. The cubic root of 152218649 is about 533.9361033489.

The spelling of 152218649 in words is "one hundred fifty-two million, two hundred eighteen thousand, six hundred forty-nine".