68531401 has 8 divisors (see below), whose sum is σ = 69638400. Its totient is φ = 67428480.

The previous prime is 68531399. The next prime is 68531413. The reversal of 68531401 is 10413586.

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 68531401 - 2¹ = 68531399 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 68531401.

It is not an unprimeable number, because it can be changed into a prime (68531431) 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, 65440 + ... + 66478.

It is an arithmetic number, because the mean of its divisors is an integer number (8704800).

Almost surely, 2^68531401 is an apocalyptic number.

It is an amenable number.

68531401 is a deficient number, since it is larger than the sum of its proper divisors (1106999).

68531401 is a wasteful number, since it uses less digits than its factorization.

68531401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 68531401 is about 8278.3694650577. The cubic root of 68531401 is about 409.2259856691.

Adding to 68531401 its reverse (10413586), we get a palindrome (78944987).

The spelling of 68531401 in words is "sixty-eight million, five hundred thirty-one thousand, four hundred one".