121693970 has 16 divisors (see below), whose sum is σ = 221823360. Its totient is φ = 48061104.

The previous prime is 121693967. The next prime is 121694021. The reversal of 121693970 is 79396121.

It is a happy 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, 76232 + ... + 77811.

It is an arithmetic number, because the mean of its divisors is an integer number (13863960).

Almost surely, 2^121693970 is an apocalyptic number.

121693970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121693970 is a deficient number, since it is larger than the sum of its proper divisors (100129390).

121693970 is a wasteful number, since it uses less digits than its factorization.

121693970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154129.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 121693970 is about 11031.4989915242. The cubic root of 121693970 is about 495.5525170870.

The spelling of 121693970 in words is "one hundred twenty-one million, six hundred ninety-three thousand, nine hundred seventy".