150249857 has 4 divisors (see below), whose sum is σ = 150784836. Its totient is φ = 149714880.

The previous prime is 150249833. The next prime is 150249919. The reversal of 150249857 is 758942051.

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 50069776 + 100180081 = 7076^2 + 10009^2 .

It is a cyclic number.

It is not a de Polignac number, because 150249857 - 2⁶ = 150249793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150249457) 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 3 ways as a sum of consecutive naturals, for example, 267068 + ... + 267629.

It is an arithmetic number, because the mean of its divisors is an integer number (37696209).

Almost surely, 2^150249857 is an apocalyptic number.

It is an amenable number.

150249857 is a deficient number, since it is larger than the sum of its proper divisors (534979).

150249857 is an equidigital number, since it uses as much as digits as its factorization.

150249857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534978.

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 150249857 is about 12257.6448390382. The cubic root of 150249857 is about 531.6241350310.

The spelling of 150249857 in words is "one hundred fifty million, two hundred forty-nine thousand, eight hundred fifty-seven".