115243747 has 2 divisors, whose sum is σ = 115243748. Its totient is φ = 115243746.

The previous prime is 115243729. The next prime is 115243753. The reversal of 115243747 is 747342511.

It is a strong prime.

It is an emirp because it is prime and its reverse (747342511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115243747 - 2¹⁹ = 114719459 is a prime.

It is a super-2 number, since 2×115243747² = 26562242445200018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115243717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57621873 + 57621874.

It is an arithmetic number, because the mean of its divisors is an integer number (57621874).

Almost surely, 2^115243747 is an apocalyptic number.

115243747 is a deficient number, since it is larger than the sum of its proper divisors (1).

115243747 is an equidigital number, since it uses as much as digits as its factorization.

115243747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23520, while the sum is 34.

The square root of 115243747 is about 10735.1640415971. The cubic root of 115243747 is about 486.6377440016.

The spelling of 115243747 in words is "one hundred fifteen million, two hundred forty-three thousand, seven hundred forty-seven".