121440532 has 24 divisors (see below), whose sum is σ = 214741800. Its totient is φ = 60089856.

The previous prime is 121440523. The next prime is 121440541. The reversal of 121440532 is 235044121.

It is an interprime number because it is at equal distance from previous prime (121440523) and next prime (121440541).

It can be written as a sum of positive squares in 4 ways, for example, as 11316496 + 110124036 = 3364^2 + 10494^2 .

It is a congruent number.

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, 213144 + ... + 213712.

It is an arithmetic number, because the mean of its divisors is an integer number (8947575).

Almost surely, 2^121440532 is an apocalyptic number.

It is an amenable number.

121440532 is a deficient number, since it is larger than the sum of its proper divisors (93301268).

121440532 is a wasteful number, since it uses less digits than its factorization.

121440532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035 (or 1033 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 121440532 is about 11020.0059891091. The cubic root of 121440532 is about 495.2082679703.

Adding to 121440532 its reverse (235044121), we get a palindrome (356484653).

The spelling of 121440532 in words is "one hundred twenty-one million, four hundred forty thousand, five hundred thirty-two".