121246742 has 4 divisors (see below), whose sum is σ = 181870116. Its totient is φ = 60623370.

The previous prime is 121246739. The next prime is 121246753. The reversal of 121246742 is 247642121.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×121246742² = 29401544891229128, 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 as a sum of consecutive naturals, namely, 30311684 + ... + 30311687.

It is an arithmetic number, because the mean of its divisors is an integer number (45467529).

Almost surely, 2^121246742 is an apocalyptic number.

121246742 is a deficient number, since it is larger than the sum of its proper divisors (60623374).

121246742 is an equidigital number, since it uses as much as digits as its factorization.

121246742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60623373.

The product of its digits is 5376, while the sum is 29.

The square root of 121246742 is about 11011.2098336196. The cubic root of 121246742 is about 494.9447164733.

Adding to 121246742 its reverse (247642121), we get a palindrome (368888863).

The spelling of 121246742 in words is "one hundred twenty-one million, two hundred forty-six thousand, seven hundred forty-two".