1368186121 has 9 divisors (see below), whose sum is σ = 1399694349. Its totient is φ = 1337374284.

The previous prime is 1368186107. The next prime is 1368186133. The reversal of 1368186121 is 1216818631.

The square root of 1368186121 is 36989.

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

It is not a de Polignac number, because 1368186121 - 2⁵ = 1368186089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1368186101) 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, 1738090 + ... + 1738876.

Almost surely, 2^1368186121 is an apocalyptic number.

1368186121 is the 36989-th square number.

1368186121 is the 18495-th centered octagonal number.

It is an amenable number.

1368186121 is a deficient number, since it is larger than the sum of its proper divisors (31508228).

1368186121 is an frugal number, since it uses more digits than its factorization.

1368186121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668 (or 834 counting only the distinct ones).

The product of its digits is 13824, while the sum is 37.

The cubic root of 1368186121 is about 1110.1501625704.

It can be divided in two parts, 1368 and 186121, that added together give a square (187489 = 433²).

The spelling of 1368186121 in words is "one billion, three hundred sixty-eight million, one hundred eighty-six thousand, one hundred twenty-one".