152221901 has 16 divisors (see below), whose sum is σ = 175405440. Its totient is φ = 130921920.

The previous prime is 152221897. The next prime is 152221903. The reversal of 152221901 is 109122251.

It is a cyclic number.

It is not a de Polignac number, because 152221901 - 2² = 152221897 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 (152221903) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 10016 + ... + 20118.

It is an arithmetic number, because the mean of its divisors is an integer number (10962840).

Almost surely, 2^152221901 is an apocalyptic number.

It is an amenable number.

152221901 is a deficient number, since it is larger than the sum of its proper divisors (23183539).

152221901 is a wasteful number, since it uses less digits than its factorization.

152221901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10196.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 152221901 is about 12337.8239977721. The cubic root of 152221901 is about 533.9399056597.

The spelling of 152221901 in words is "one hundred fifty-two million, two hundred twenty-one thousand, nine hundred one".