68469121 has 6 divisors (see below), whose sum is σ = 79647810. Its totient is φ = 58687776.

The previous prime is 68469101. The next prime is 68469127. The reversal of 68469121 is 12196486.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 65028096 + 3441025 = 8064^2 + 1855^2 .

It is not a de Polignac number, because 68469121 - 2¹¹ = 68467073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68469127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 698616 + ... + 698713.

It is an arithmetic number, because the mean of its divisors is an integer number (13274635).

Almost surely, 2^68469121 is an apocalyptic number.

It is an amenable number.

68469121 is a deficient number, since it is larger than the sum of its proper divisors (11178689).

68469121 is a wasteful number, since it uses less digits than its factorization.

68469121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397343 (or 1397336 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 68469121 is about 8274.6069997312. The cubic root of 68469121 is about 409.1019825674.

The spelling of 68469121 in words is "sixty-eight million, four hundred sixty-nine thousand, one hundred twenty-one".