121415242 has 8 divisors (see below), whose sum is σ = 196132356. Its totient is φ = 56037792.

The previous prime is 121415219. The next prime is 121415293. The reversal of 121415242 is 242514121.

It can be written as a sum of positive squares in 2 ways, for example, as 119924401 + 1490841 = 10951^2 + 1221^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 2334883 + ... + 2334934.

Almost surely, 2^121415242 is an apocalyptic number.

121415242 is a deficient number, since it is larger than the sum of its proper divisors (74717114).

121415242 is a wasteful number, since it uses less digits than its factorization.

121415242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4669832.

The product of its digits is 640, while the sum is 22.

The square root of 121415242 is about 11018.8584708217. The cubic root of 121415242 is about 495.1738898640.

Adding to 121415242 its reverse (242514121), we get a palindrome (363929363).

The spelling of 121415242 in words is "one hundred twenty-one million, four hundred fifteen thousand, two hundred forty-two".