121542852 has 12 divisors (see below), whose sum is σ = 283600016. Its totient is φ = 40514280.

The previous prime is 121542797. The next prime is 121542923. The reversal of 121542852 is 258245121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5064274 + ... + 5064297.

Almost surely, 2^121542852 is an apocalyptic number.

121542852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121542852 is an abundant number, since it is smaller than the sum of its proper divisors (162057164).

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

121542852 is a wasteful number, since it uses less digits than its factorization.

121542852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10128578 (or 10128576 counting only the distinct ones).

The product of its digits is 6400, while the sum is 30.

The square root of 121542852 is about 11024.6474773573. The cubic root of 121542852 is about 495.3473085503.

Adding to 121542852 its reverse (258245121), we get a palindrome (379787973).

The spelling of 121542852 in words is "one hundred twenty-one million, five hundred forty-two thousand, eight hundred fifty-two".