152221995 has 48 divisors (see below), whose sum is σ = 281092032. Its totient is φ = 75939840.

The previous prime is 152221969. The next prime is 152222011. The reversal of 152221995 is 599122251.

It is a happy number.

It is not a de Polignac number, because 152221995 - 2⁵ = 152221963 is a prime.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 147130 + ... + 148160.

It is an arithmetic number, because the mean of its divisors is an integer number (5856084).

Almost surely, 2^152221995 is an apocalyptic number.

152221995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

152221995 is a deficient number, since it is larger than the sum of its proper divisors (128870037).

152221995 is a wasteful number, since it uses less digits than its factorization.

152221995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252 (or 1249 counting only the distinct ones).

The product of its digits is 16200, while the sum is 36.

The square root of 152221995 is about 12337.8278071952. The cubic root of 152221995 is about 533.9400155658.

The spelling of 152221995 in words is "one hundred fifty-two million, two hundred twenty-one thousand, nine hundred ninety-five".