68137954 has 8 divisors (see below), whose sum is σ = 102486528. Its totient is φ = 33975780.

The previous prime is 68137931. The next prime is 68137957. The reversal of 68137954 is 45973186.

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

It is a super-2 number, since 2×68137954² = 9285561550612232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68137954.

It is not an unprimeable number, because it can be changed into a prime (68137957) 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, 45682 + ... + 47149.

It is an arithmetic number, because the mean of its divisors is an integer number (12810816).

Almost surely, 2^68137954 is an apocalyptic number.

68137954 is a deficient number, since it is larger than the sum of its proper divisors (34348574).

68137954 is a wasteful number, since it uses less digits than its factorization.

68137954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93200.

The product of its digits is 181440, while the sum is 43.

The square root of 68137954 is about 8254.5717030019. The cubic root of 68137954 is about 408.4413436702.

The spelling of 68137954 in words is "sixty-eight million, one hundred thirty-seven thousand, nine hundred fifty-four".