152421252 has 48 divisors (see below), whose sum is σ = 379048320. Its totient is φ = 47503872.

The previous prime is 152421233. The next prime is 152421271. The reversal of 152421252 is 252124251.

It is an interprime number because it is at equal distance from previous prime (152421233) and next prime (152421271).

It is a super-2 number, since 2×152421252² = 46464476122495008, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 29649 + ... + 34407.

It is an arithmetic number, because the mean of its divisors is an integer number (7896840).

Almost surely, 2^152421252 is an apocalyptic number.

152421252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 152421252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189524160).

152421252 is an abundant number, since it is smaller than the sum of its proper divisors (226627068).

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

152421252 is a wasteful number, since it uses less digits than its factorization.

152421252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4940 (or 4938 counting only the distinct ones).

The product of its digits is 1600, while the sum is 24.

The square root of 152421252 is about 12345.9002101912. The cubic root of 152421252 is about 534.1728879522.

The spelling of 152421252 in words is "one hundred fifty-two million, four hundred twenty-one thousand, two hundred fifty-two".