121964 has 6 divisors (see below), whose sum is σ = 213444. Its totient is φ = 60980.

The previous prime is 121963. The next prime is 121967. The reversal of 121964 is 469121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15242 + ... + 15249.

It is an arithmetic number, because the mean of its divisors is an integer number (35574).

2¹²¹⁹⁶⁴ is an apocalyptic number.

It is an amenable number.

121964 is a deficient number, since it is larger than the sum of its proper divisors (91480).

121964 is a wasteful number, since it uses less digits than its factorization.

121964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30495 (or 30493 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

The square root of 121964 is about 349.2334462791. The cubic root of 121964 is about 49.5918777890.

It can be divided in two parts, 12196 and 4, that multiplied together give a palindrome (48784).

The spelling of 121964 in words is "one hundred twenty-one thousand, nine hundred sixty-four".