15253481 has 2 divisors, whose sum is σ = 15253482. Its totient is φ = 15253480.

The previous prime is 15253463. The next prime is 15253489. The reversal of 15253481 is 18435251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12138256 + 3115225 = 3484^2 + 1765^2 .

It is a cyclic number.

It is not a de Polignac number, because 15253481 - 2²² = 11059177 is a prime.

It is a super-2 number, since 2×15253481² = 465337365234722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (15253489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7626740 + 7626741.

It is an arithmetic number, because the mean of its divisors is an integer number (7626741).

Almost surely, 2^15253481 is an apocalyptic number.

It is an amenable number.

15253481 is a deficient number, since it is larger than the sum of its proper divisors (1).

15253481 is an equidigital number, since it uses as much as digits as its factorization.

15253481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 29.

The square root of 15253481 is about 3905.5705089014. The cubic root of 15253481 is about 248.0026502058.

The spelling of 15253481 in words is "fifteen million, two hundred fifty-three thousand, four hundred eighty-one".