121365700 has 18 divisors (see below), whose sum is σ = 263363786. Its totient is φ = 48546240.

The previous prime is 121365691. The next prime is 121365709. The reversal of 121365700 is 7563121.

It is an interprime number because it is at equal distance from previous prime (121365691) and next prime (121365709).

It can be written as a sum of positive squares in 3 ways, for example, as 937024 + 120428676 = 968^2 + 10974^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (121365709) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 606729 + ... + 606928.

Almost surely, 2^121365700 is an apocalyptic number.

121365700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121365700 is an abundant number, since it is smaller than the sum of its proper divisors (141998086).

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

121365700 is a wasteful number, since it uses less digits than its factorization.

121365700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213671 (or 1213664 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 121365700 is about 11016.6101864412. The cubic root of 121365700 is about 495.1065308245.

The spelling of 121365700 in words is "one hundred twenty-one million, three hundred sixty-five thousand, seven hundred".