17305139401 has 9 divisors (see below), whose sum is σ = 19022942253. Its totient is φ = 15730629420.

The previous prime is 17305139389. The next prime is 17305139459. The reversal of 17305139401 is 10493150371.

It is a happy number.

The square root of 17305139401 is 131549.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 17305139401 - 2¹⁹ = 17304615113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17305139101) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1441060 + ... + 1453018.

Almost surely, 2^17305139401 is an apocalyptic number.

17305139401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

17305139401 is the 131549-th square number.

17305139401 is the 65775-th centered octagonal number.

It is an amenable number.

17305139401 is a deficient number, since it is larger than the sum of its proper divisors (1717802852).

17305139401 is an frugal number, since it uses more digits than its factorization.

17305139401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23940 (or 11970 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 34.

Adding to 17305139401 its reverse (10493150371), we get a palindrome (27798289772).

The spelling of 17305139401 in words is "seventeen billion, three hundred five million, one hundred thirty-nine thousand, four hundred one".