121544264 has 32 divisors (see below), whose sum is σ = 233678520. Its totient is φ = 59245056.

The previous prime is 121544263. The next prime is 121544281. The reversal of 121544264 is 462445121.

It can be written as a sum of positive squares in 4 ways, for example, as 119464900 + 2079364 = 10930^2 + 1442^2 .

It is a super-2 number, since 2×121544264² = 29546016222603392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121544263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72524 + ... + 74180.

Almost surely, 2^121544264 is an apocalyptic number.

It is an amenable number.

121544264 is a deficient number, since it is larger than the sum of its proper divisors (112134256).

121544264 is a wasteful number, since it uses less digits than its factorization.

121544264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889 (or 1885 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 121544264 is about 11024.7115155001. The cubic root of 121544264 is about 495.3492267426.

Adding to 121544264 its reverse (462445121), we get a palindrome (583989385).

The spelling of 121544264 in words is "one hundred twenty-one million, five hundred forty-four thousand, two hundred sixty-four".