115547 has 2 divisors, whose sum is σ = 115548. Its totient is φ = 115546.

The previous prime is 115523. The next prime is 115553. The reversal of 115547 is 745511.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115547 is a prime.

It is a super-2 number, since 2×115547² = 26702218418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115597) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57773 + 57774.

It is an arithmetic number, because the mean of its divisors is an integer number (57774).

2¹¹⁵⁵⁴⁷ is an apocalyptic number.

115547 is a deficient number, since it is larger than the sum of its proper divisors (1).

115547 is an equidigital number, since it uses as much as digits as its factorization.

115547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 700, while the sum is 23.

The square root of 115547 is about 339.9220498879. The cubic root of 115547 is about 48.7064217182.

It can be divided in two parts, 1155 and 47, that multiplied together give a triangular number (54285 = T₃₂₉).

The spelling of 115547 in words is "one hundred fifteen thousand, five hundred forty-seven".