121723452 has 48 divisors (see below), whose sum is σ = 329306880. Its totient is φ = 38809584.

The previous prime is 121723447. The next prime is 121723463. The reversal of 121723452 is 254327121.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22018 + ... + 26985.

It is an arithmetic number, because the mean of its divisors is an integer number (6860560).

Almost surely, 2^121723452 is an apocalyptic number.

121723452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121723452 is an abundant number, since it is smaller than the sum of its proper divisors (207583428).

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

121723452 is a wasteful number, since it uses less digits than its factorization.

121723452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49039 (or 49031 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 121723452 is about 11032.8351750581. The cubic root of 121723452 is about 495.5925319419.

The spelling of 121723452 in words is "one hundred twenty-one million, seven hundred twenty-three thousand, four hundred fifty-two".