121601754 has 12 divisors (see below), whose sum is σ = 263470506. Its totient is φ = 40533912.

The previous prime is 121601743. The next prime is 121601783. The reversal of 121601754 is 457106121.

It is a happy number.

121601754 is a `hidden beast` number, since 1 + 2 + 1 + 601 + 7 + 54 = 666.

It can be written as a sum of positive squares in only one way, i.e., 103734225 + 17867529 = 10185^2 + 4227^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3377809 + ... + 3377844.

Almost surely, 2^121601754 is an apocalyptic number.

121601754 is an abundant number, since it is smaller than the sum of its proper divisors (141868752).

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

121601754 is a wasteful number, since it uses less digits than its factorization.

121601754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6755661 (or 6755658 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 121601754 is about 11027.3185317193. The cubic root of 121601754 is about 495.4273139002.

Adding to 121601754 its reverse (457106121), we get a palindrome (578707875).

The spelling of 121601754 in words is "one hundred twenty-one million, six hundred one thousand, seven hundred fifty-four".