121562 has 16 divisors (see below), whose sum is σ = 219840. Its totient is φ = 49248.

The previous prime is 121559. The next prime is 121571. The reversal of 121562 is 265121.

It is a self number, because there is not a number n which added to its sum of digits gives 121562.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38 + ... + 494.

It is an arithmetic number, because the mean of its divisors is an integer number (13740).

2¹²¹⁵⁶² is an apocalyptic number.

121562 is a deficient number, since it is larger than the sum of its proper divisors (98278).

121562 is a wasteful number, since it uses less digits than its factorization.

121562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485.

The product of its digits is 120, while the sum is 17.

The square root of 121562 is about 348.6574249891. The cubic root of 121562 is about 49.5373319712.

Adding to 121562 its reverse (265121), we get a palindrome (386683).

The spelling of 121562 in words is "one hundred twenty-one thousand, five hundred sixty-two".