121374436 has 6 divisors (see below), whose sum is σ = 212405270. Its totient is φ = 60687216.

The previous prime is 121374433. The next prime is 121374439. The reversal of 121374436 is 634473121.

It is an interprime number because it is at equal distance from previous prime (121374433) and next prime (121374439).

It can be written as a sum of positive squares in only one way, i.e., 118940836 + 2433600 = 10906^2 + 1560^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121374398 and 121374407.

It is not an unprimeable number, because it can be changed into a prime (121374433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15171801 + ... + 15171808.

Almost surely, 2^121374436 is an apocalyptic number.

It is an amenable number.

121374436 is a deficient number, since it is larger than the sum of its proper divisors (91030834).

121374436 is a wasteful number, since it uses less digits than its factorization.

121374436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30343613 (or 30343611 counting only the distinct ones).

The product of its digits is 12096, while the sum is 31.

The square root of 121374436 is about 11017.0066715056. The cubic root of 121374436 is about 495.1184099273.

The spelling of 121374436 in words is "one hundred twenty-one million, three hundred seventy-four thousand, four hundred thirty-six".