152221932 has 18 divisors (see below), whose sum is σ = 384783308. Its totient is φ = 50740632.

The previous prime is 152221931. The next prime is 152221963. The reversal of 152221932 is 239122251.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 152221896 and 152221905.

It is not an unprimeable number, because it can be changed into a prime (152221931) 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 5 ways as a sum of consecutive naturals, for example, 2114158 + ... + 2114229.

Almost surely, 2^152221932 is an apocalyptic number.

152221932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

152221932 is an abundant number, since it is smaller than the sum of its proper divisors (232561376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

152221932 is a wasteful number, since it uses less digits than its factorization.

152221932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4228397 (or 4228392 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 152221932 is about 12337.8252540713. The cubic root of 152221932 is about 533.9399419053.

It can be divided in two parts, 1522219 and 32, that added together give a palindrome (1522251).

The spelling of 152221932 in words is "one hundred fifty-two million, two hundred twenty-one thousand, nine hundred thirty-two".