121269744 has 40 divisors (see below), whose sum is σ = 348090320. Its totient is φ = 40423104.

The previous prime is 121269703. The next prime is 121269749. The reversal of 121269744 is 447962121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 121269699 and 121269708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121269749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139927 + ... + 140790.

It is an arithmetic number, because the mean of its divisors is an integer number (8702258).

Almost surely, 2^121269744 is an apocalyptic number.

It is an amenable number.

121269744 is an abundant number, since it is smaller than the sum of its proper divisors (226820576).

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

121269744 is a wasteful number, since it uses less digits than its factorization.

121269744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280734 (or 280722 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 121269744 is about 11012.2542651357. The cubic root of 121269744 is about 494.9760135301.

The spelling of 121269744 in words is "one hundred twenty-one million, two hundred sixty-nine thousand, seven hundred forty-four".