121452472 has 8 divisors (see below), whose sum is σ = 227723400. Its totient is φ = 60726232.

The previous prime is 121452449. The next prime is 121452479. The reversal of 121452472 is 274254121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 121452472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121452479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7590772 + ... + 7590787.

It is an arithmetic number, because the mean of its divisors is an integer number (28465425).

Almost surely, 2^121452472 is an apocalyptic number.

It is an amenable number.

121452472 is a deficient number, since it is larger than the sum of its proper divisors (106270928).

121452472 is a wasteful number, since it uses less digits than its factorization.

121452472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15181565 (or 15181561 counting only the distinct ones).

The product of its digits is 4480, while the sum is 28.

The square root of 121452472 is about 11020.5477177861. The cubic root of 121452472 is about 495.2244970191.

The spelling of 121452472 in words is "one hundred twenty-one million, four hundred fifty-two thousand, four hundred seventy-two".