193498349431 has 2 divisors, whose sum is σ = 193498349432. Its totient is φ = 193498349430.

The previous prime is 193498349413. The next prime is 193498349461. The reversal of 193498349431 is 134943894391.

Together with previous prime (193498349413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 193498349431 - 2⁹ = 193498348919 is a prime.

It is a super-2 number, since 2×193498349431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (193498349461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96749174715 + 96749174716.

It is an arithmetic number, because the mean of its divisors is an integer number (96749174716).

Almost surely, 2^193498349431 is an apocalyptic number.

193498349431 is a deficient number, since it is larger than the sum of its proper divisors (1).

193498349431 is an equidigital number, since it uses as much as digits as its factorization.

193498349431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10077696, while the sum is 58.

The spelling of 193498349431 in words is "one hundred ninety-three billion, four hundred ninety-eight million, three hundred forty-nine thousand, four hundred thirty-one".