115400543 has 2 divisors, whose sum is σ = 115400544. Its totient is φ = 115400542.

The previous prime is 115400501. The next prime is 115400563. The reversal of 115400543 is 345004511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115400543 - 2²² = 111206239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115400563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57700271 + 57700272.

It is an arithmetic number, because the mean of its divisors is an integer number (57700272).

Almost surely, 2^115400543 is an apocalyptic number.

115400543 is a deficient number, since it is larger than the sum of its proper divisors (1).

115400543 is an equidigital number, since it uses as much as digits as its factorization.

115400543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 115400543 is about 10742.4644751565. The cubic root of 115400543 is about 486.8583438895.

The spelling of 115400543 in words is "one hundred fifteen million, four hundred thousand, five hundred forty-three".