152199891 has 16 divisors (see below), whose sum is σ = 228268320. Its totient is φ = 101465136.

The previous prime is 152199889. The next prime is 152199893. The reversal of 152199891 is 198991251.

It is an interprime number because it is at equal distance from previous prime (152199889) and next prime (152199893).

It is not a de Polignac number, because 152199891 - 2¹ = 152199889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (152199893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32610 + ... + 36983.

It is an arithmetic number, because the mean of its divisors is an integer number (14266770).

Almost surely, 2^152199891 is an apocalyptic number.

152199891 is a deficient number, since it is larger than the sum of its proper divisors (76068429).

152199891 is an frugal number, since it uses more digits than its factorization.

152199891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69614 (or 69596 counting only the distinct ones).

The product of its digits is 58320, while the sum is 45.

The square root of 152199891 is about 12336.9319930038. The cubic root of 152199891 is about 533.9141700204.

The spelling of 152199891 in words is "one hundred fifty-two million, one hundred ninety-nine thousand, eight hundred ninety-one".