68546137 has 18 divisors (see below), whose sum is σ = 77455742. Its totient is φ = 60614400.

The previous prime is 68546123. The next prime is 68546173. The reversal of 68546137 is 73164586.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 5645376 + 62900761 = 2376^2 + 7931^2 .

It is a de Polignac number, because none of the positive numbers 2^k-68546137 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 68546137.

It is not an unprimeable number, because it can be changed into a prime (68546537) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 203233 + ... + 203569.

Almost surely, 2^68546137 is an apocalyptic number.

It is an amenable number.

68546137 is a deficient number, since it is larger than the sum of its proper divisors (8909605).

68546137 is a wasteful number, since it uses less digits than its factorization.

68546137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441 (or 389 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 68546137 is about 8279.2594475593. The cubic root of 68546137 is about 409.2553149102.

The spelling of 68546137 in words is "sixty-eight million, five hundred forty-six thousand, one hundred thirty-seven".