121895532 has 36 divisors (see below), whose sum is σ = 336137256. Its totient is φ = 36937920.

The previous prime is 121895513. The next prime is 121895533. The reversal of 121895532 is 235598121.

121895532 is a `hidden beast` number, since 1 + 21 + 89 + 553 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (121895533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153513 + ... + 154304.

It is an arithmetic number, because the mean of its divisors is an integer number (9337146).

Almost surely, 2^121895532 is an apocalyptic number.

121895532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121895532 is an abundant number, since it is smaller than the sum of its proper divisors (214241724).

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

121895532 is a wasteful number, since it uses less digits than its factorization.

121895532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307838 (or 307833 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 121895532 is about 11040.6309602305. The cubic root of 121895532 is about 495.8259610953.

The spelling of 121895532 in words is "one hundred twenty-one million, eight hundred ninety-five thousand, five hundred thirty-two".