121243446 has 32 divisors (see below), whose sum is σ = 283612800. Its totient is φ = 38287080.

The previous prime is 121243399. The next prime is 121243457. The reversal of 121243446 is 644342121.

It is a happy number.

121243446 is a `hidden beast` number, since 1 + 212 + 4 + 3 + 446 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58060 + ... + 60111.

It is an arithmetic number, because the mean of its divisors is an integer number (8862900).

Almost surely, 2^121243446 is an apocalyptic number.

121243446 is an abundant number, since it is smaller than the sum of its proper divisors (162369354).

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

121243446 is a wasteful number, since it uses less digits than its factorization.

121243446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118201 (or 118195 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 121243446 is about 11011.0601669412. The cubic root of 121243446 is about 494.9402315347.

Adding to 121243446 its reverse (644342121), we get a palindrome (765585567).

The spelling of 121243446 in words is "one hundred twenty-one million, two hundred forty-three thousand, four hundred forty-six".