121532152 has 96 divisors (see below), whose sum is σ = 279400320. Its totient is φ = 49351680.

The previous prime is 121532149. The next prime is 121532209. The reversal of 121532152 is 251235121.

It is a super-2 number, since 2×121532152² = 29540127939502208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 887028 + ... + 887164.

It is an arithmetic number, because the mean of its divisors is an integer number (2910420).

Almost surely, 2^121532152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121532152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139700160).

121532152 is an abundant number, since it is smaller than the sum of its proper divisors (157868168).

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

121532152 is a wasteful number, since it uses less digits than its factorization.

121532152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 250 counting only the distinct ones).

The product of its digits is 600, while the sum is 22.

The square root of 121532152 is about 11024.1621903889. The cubic root of 121532152 is about 495.3327721909.

Adding to 121532152 its reverse (251235121), we get a palindrome (372767273).

The spelling of 121532152 in words is "one hundred twenty-one million, five hundred thirty-two thousand, one hundred fifty-two".