115545451451531 has 2 divisors, whose sum is σ = 115545451451532. Its totient is φ = 115545451451530.

The previous prime is 115545451451519. The next prime is 115545451451557. The reversal of 115545451451531 is 135154154545511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115545451451531 - 2⁴² = 111147404940427 is a prime.

It is a super-2 number, since 2×115545451451531² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 115545451451531.

It is not a weakly prime, because it can be changed into another prime (115545451450531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57772725725765 + 57772725725766.

It is an arithmetic number, because the mean of its divisors is an integer number (57772725725766).

Almost surely, 2^{115545451451531} is an apocalyptic number.

115545451451531 is a deficient number, since it is larger than the sum of its proper divisors (1).

115545451451531 is an equidigital number, since it uses as much as digits as its factorization.

115545451451531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3000000, while the sum is 50.

The spelling of 115545451451531 in words is "one hundred fifteen trillion, five hundred forty-five billion, four hundred fifty-one million, four hundred fifty-one thousand, five hundred thirty-one".