121153532 has 48 divisors (see below), whose sum is σ = 227525760. Its totient is φ = 56344512.

The previous prime is 121153507. The next prime is 121153541. The reversal of 121153532 is 235351121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121153498 and 121153507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 533603 + ... + 533829.

It is an arithmetic number, because the mean of its divisors is an integer number (4740120).

Almost surely, 2^121153532 is an apocalyptic number.

It is an amenable number.

121153532 is a deficient number, since it is larger than the sum of its proper divisors (106372228).

121153532 is a wasteful number, since it uses less digits than its factorization.

121153532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 408 counting only the distinct ones).

The product of its digits is 900, while the sum is 23.

The square root of 121153532 is about 11006.9765149200. The cubic root of 121153532 is about 494.8178522423.

The spelling of 121153532 in words is "one hundred twenty-one million, one hundred fifty-three thousand, five hundred thirty-two".