121372 has 12 divisors (see below), whose sum is σ = 223720. Its totient is φ = 57456.

The previous prime is 121369. The next prime is 121379. The reversal of 121372 is 273121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121379) 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, 723 + ... + 874.

2¹²¹³⁷² is an apocalyptic number.

It is an amenable number.

121372 is a deficient number, since it is larger than the sum of its proper divisors (102348).

121372 is a wasteful number, since it uses less digits than its factorization.

121372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620 (or 1618 counting only the distinct ones).

The product of its digits is 84, while the sum is 16.

The square root of 121372 is about 348.3848446761. The cubic root of 121372 is about 49.5115097542.

Adding to 121372 its reverse (273121), we get a palindrome (394493).

The spelling of 121372 in words is "one hundred twenty-one thousand, three hundred seventy-two", and thus it is an iban number.