121573208 has 16 divisors (see below), whose sum is σ = 232800480. Its totient is φ = 59493088.

The previous prime is 121573189. The next prime is 121573211. The reversal of 121573208 is 802375121.

It is a super-2 number, since 2×121573208² = 29560089806822528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161291 + ... + 162042.

It is an arithmetic number, because the mean of its divisors is an integer number (14550030).

Almost surely, 2^121573208 is an apocalyptic number.

It is an amenable number.

121573208 is a deficient number, since it is larger than the sum of its proper divisors (111227272).

121573208 is a wasteful number, since it uses less digits than its factorization.

121573208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323386 (or 323382 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 121573208 is about 11026.0241247695. The cubic root of 121573208 is about 495.3885436949.

The spelling of 121573208 in words is "one hundred twenty-one million, five hundred seventy-three thousand, two hundred eight".