13241890397 has 4 divisors (see below), whose sum is σ = 13363375740. Its totient is φ = 13120405056.

The previous prime is 13241890351. The next prime is 13241890537. The reversal of 13241890397 is 79309814231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3349399876 + 9892490521 = 57874^2 + 99461^2 .

It is a cyclic number.

It is not a de Polignac number, because 13241890397 - 2¹⁴ = 13241874013 is a prime.

It is a super-2 number, since 2×13241890397² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13241890307) 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, 60742508 + ... + 60742725.

It is an arithmetic number, because the mean of its divisors is an integer number (3340843935).

Almost surely, 2^13241890397 is an apocalyptic number.

It is an amenable number.

13241890397 is a deficient number, since it is larger than the sum of its proper divisors (121485343).

13241890397 is a wasteful number, since it uses less digits than its factorization.

13241890397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121485342.

The product of its (nonzero) digits is 326592, while the sum is 47.

The spelling of 13241890397 in words is "thirteen billion, two hundred forty-one million, eight hundred ninety thousand, three hundred ninety-seven".