68149117 has 8 divisors (see below), whose sum is σ = 69312672. Its totient is φ = 66990000.

The previous prime is 68149099. The next prime is 68149171. The reversal of 68149117 is 71194186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68149117 - 2⁷ = 68148989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68149517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46242 + ... + 47692.

It is an arithmetic number, because the mean of its divisors is an integer number (8664084).

Almost surely, 2^68149117 is an apocalyptic number.

68149117 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

68149117 is a deficient number, since it is larger than the sum of its proper divisors (1163555).

68149117 is a wasteful number, since it uses less digits than its factorization.

68149117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219.

The product of its digits is 12096, while the sum is 37.

The square root of 68149117 is about 8255.2478460674. The cubic root of 68149117 is about 408.4636473521.

It can be divided in two parts, 6814 and 9117, that added together give a triangular number (15931 = T₁₇₈).

The spelling of 68149117 in words is "sixty-eight million, one hundred forty-nine thousand, one hundred seventeen".