121152534 has 16 divisors (see below), whose sum is σ = 242869872. Its totient is φ = 40290048.

The previous prime is 121152509. The next prime is 121152553. The reversal of 121152534 is 435251121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20719 + ... + 25914.

It is an arithmetic number, because the mean of its divisors is an integer number (15179367).

Almost surely, 2^121152534 is an apocalyptic number.

121152534 is an abundant number, since it is smaller than the sum of its proper divisors (121717338).

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

121152534 is a wasteful number, since it uses less digits than its factorization.

121152534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47071.

The product of its digits is 1200, while the sum is 24.

The square root of 121152534 is about 11006.9311799429. The cubic root of 121152534 is about 494.8164935542.

The spelling of 121152534 in words is "one hundred twenty-one million, one hundred fifty-two thousand, five hundred thirty-four".