121345936 has 10 divisors (see below), whose sum is σ = 235107782. Its totient is φ = 60672960.

The previous prime is 121345927. The next prime is 121345943. The reversal of 121345936 is 639543121.

It can be written as a sum of positive squares in only one way, i.e., 105185536 + 16160400 = 10256^2 + 4020^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3792045 + ... + 3792076.

Almost surely, 2^121345936 is an apocalyptic number.

121345936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

121345936 is a deficient number, since it is larger than the sum of its proper divisors (113761846).

121345936 is an equidigital number, since it uses as much as digits as its factorization.

121345936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7584129 (or 7584123 counting only the distinct ones).

The product of its digits is 19440, while the sum is 34.

The square root of 121345936 is about 11015.7131407821. The cubic root of 121345936 is about 495.0796538823.

The spelling of 121345936 in words is "one hundred twenty-one million, three hundred forty-five thousand, nine hundred thirty-six".