68294137 has 4 divisors (see below), whose sum is σ = 68313700. Its totient is φ = 68274576.

The previous prime is 68294087. The next prime is 68294167. The reversal of 68294137 is 73149286.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50069776 + 18224361 = 7076^2 + 4269^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68294137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68294137.

It is not an unprimeable number, because it can be changed into a prime (68294167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2958 + ... + 12055.

It is an arithmetic number, because the mean of its divisors is an integer number (17078425).

Almost surely, 2^68294137 is an apocalyptic number.

It is an amenable number.

68294137 is a deficient number, since it is larger than the sum of its proper divisors (19563).

68294137 is a wasteful number, since it uses less digits than its factorization.

68294137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19562.

The product of its digits is 72576, while the sum is 40.

The square root of 68294137 is about 8264.0266819511. The cubic root of 68294137 is about 408.7531763197.

The spelling of 68294137 in words is "sixty-eight million, two hundred ninety-four thousand, one hundred thirty-seven".