15426493 has 2 divisors, whose sum is σ = 15426494. Its totient is φ = 15426492.

The previous prime is 15426469. The next prime is 15426503. The reversal of 15426493 is 39462451.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10876804 + 4549689 = 3298^2 + 2133^2 .

It is a cyclic number.

It is not a de Polignac number, because 15426493 - 2⁹ = 15425981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15426193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7713246 + 7713247.

It is an arithmetic number, because the mean of its divisors is an integer number (7713247).

Almost surely, 2^15426493 is an apocalyptic number.

It is an amenable number.

15426493 is a deficient number, since it is larger than the sum of its proper divisors (1).

15426493 is an equidigital number, since it uses as much as digits as its factorization.

15426493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 34.

The square root of 15426493 is about 3927.6574443299. The cubic root of 15426493 is about 248.9367806688.

The spelling of 15426493 in words is "fifteen million, four hundred twenty-six thousand, four hundred ninety-three".