68148493 has 16 divisors (see below), whose sum is σ = 79474816. Its totient is φ = 57231360.

The previous prime is 68148473. The next prime is 68148499. The reversal of 68148493 is 39484186.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68148493 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 (68148499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98278 + ... + 98968.

It is an arithmetic number, because the mean of its divisors is an integer number (4967176).

Almost surely, 2^68148493 is an apocalyptic number.

It is an amenable number.

68148493 is a deficient number, since it is larger than the sum of its proper divisors (11326323).

68148493 is a wasteful number, since it uses less digits than its factorization.

68148493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964.

The product of its digits is 165888, while the sum is 43.

The square root of 68148493 is about 8255.2100518400. The cubic root of 68148493 is about 408.4624006639.

The spelling of 68148493 in words is "sixty-eight million, one hundred forty-eight thousand, four hundred ninety-three".