121153040 has 20 divisors (see below), whose sum is σ = 281681004. Its totient is φ = 48461184.

The previous prime is 121153037. The next prime is 121153061. The reversal of 121153040 is 40351121.

It can be written as a sum of positive squares in 2 ways, for example, as 30294016 + 90859024 = 5504^2 + 9532^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 757127 + ... + 757286.

Almost surely, 2^121153040 is an apocalyptic number.

121153040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121153040 is an abundant number, since it is smaller than the sum of its proper divisors (160527964).

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

121153040 is a wasteful number, since it uses less digits than its factorization.

121153040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514426 (or 1514420 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 121153040 is about 11006.9541654356. The cubic root of 121153040 is about 494.8171824291.

The spelling of 121153040 in words is "one hundred twenty-one million, one hundred fifty-three thousand, forty".