121287532 has 24 divisors (see below), whose sum is σ = 217573776. Its totient is φ = 59137728.

The previous prime is 121287521. The next prime is 121287559. The reversal of 121287532 is 235782121.

It is a junction number, because it is equal to n+sod(n) for n = 121287494 and 121287503.

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, 35023 + ... + 38329.

It is an arithmetic number, because the mean of its divisors is an integer number (9065574).

Almost surely, 2^121287532 is an apocalyptic number.

It is an amenable number.

121287532 is a deficient number, since it is larger than the sum of its proper divisors (96286244).

121287532 is a wasteful number, since it uses less digits than its factorization.

121287532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3537 (or 3535 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 121287532 is about 11013.0618812390. The cubic root of 121287532 is about 495.0002135836. Note that the first 3 decimals are identical.

The spelling of 121287532 in words is "one hundred twenty-one million, two hundred eighty-seven thousand, five hundred thirty-two".