121857674 has 4 divisors (see below), whose sum is σ = 182786514. Its totient is φ = 60928836.

The previous prime is 121857629. The next prime is 121857689. The reversal of 121857674 is 476758121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 476758121 = 7 ⋅68108303.

It can be written as a sum of positive squares in only one way, i.e., 100300225 + 21557449 = 10015^2 + 4643^2 .

It is an unprimeable number.

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, 30464417 + ... + 30464420.

Almost surely, 2^121857674 is an apocalyptic number.

121857674 is a deficient number, since it is larger than the sum of its proper divisors (60928840).

121857674 is an equidigital number, since it uses as much as digits as its factorization.

121857674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60928839.

The product of its digits is 94080, while the sum is 41.

The square root of 121857674 is about 11038.9163417430. The cubic root of 121857674 is about 495.7746249975.

The spelling of 121857674 in words is "one hundred twenty-one million, eight hundred fifty-seven thousand, six hundred seventy-four".