188760121 has 9 divisors (see below), whose sum is σ = 207646383. Its totient is φ = 171462720.

The previous prime is 188760119. The next prime is 188760133. The reversal of 188760121 is 121067881.

The square root of 188760121 is 13739.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 77246521 + 111513600 = 8789^2 + 10560^2 .

It is not a de Polignac number, because 188760121 - 2¹ = 188760119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (188760181) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 150505 + ... + 151753.

Almost surely, 2^188760121 is an apocalyptic number.

188760121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

188760121 is the 13739-th square number.

188760121 is the 6870-th centered octagonal number.

It is an amenable number.

188760121 is a deficient number, since it is larger than the sum of its proper divisors (18886262).

188760121 is an frugal number, since it uses more digits than its factorization.

188760121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2520 (or 1260 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 34.

The cubic root of 188760121 is about 573.6364626149.

It can be divided in two parts, 188760 and 121, that added together give a palindrome (188881).

The spelling of 188760121 in words is "one hundred eighty-eight million, seven hundred sixty thousand, one hundred twenty-one".