121730446 has 8 divisors (see below), whose sum is σ = 183393720. Its totient is φ = 60599208.

The previous prime is 121730443. The next prime is 121730449. The reversal of 121730446 is 644037121.

It is an interprime number because it is at equal distance from previous prime (121730443) and next prime (121730449).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121730443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132436 + ... + 133351.

It is an arithmetic number, because the mean of its divisors is an integer number (22924215).

Almost surely, 2^121730446 is an apocalyptic number.

121730446 is a deficient number, since it is larger than the sum of its proper divisors (61663274).

121730446 is a wasteful number, since it uses less digits than its factorization.

121730446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266018.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 121730446 is about 11033.1521334567. The cubic root of 121730446 is about 495.6020236976.

Adding to 121730446 its reverse (644037121), we get a palindrome (765767567).

The spelling of 121730446 in words is "one hundred twenty-one million, seven hundred thirty thousand, four hundred forty-six".