115143461 has 4 divisors (see below), whose sum is σ = 115284192. Its totient is φ = 115002732.

The previous prime is 115143443. The next prime is 115143481. The reversal of 115143461 is 164341511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 164341511 = 179 ⋅918109.

It is a cyclic number.

It is not a de Polignac number, because 115143461 - 2¹⁸ = 114881317 is a prime.

It is a super-2 number, since 2×115143461² = 26516033222117042, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115143461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115143421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69131 + ... + 70776.

It is an arithmetic number, because the mean of its divisors is an integer number (28821048).

Almost surely, 2^115143461 is an apocalyptic number.

It is an amenable number.

115143461 is a deficient number, since it is larger than the sum of its proper divisors (140731).

115143461 is an equidigital number, since it uses as much as digits as its factorization.

115143461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140730.

The product of its digits is 1440, while the sum is 26.

The square root of 115143461 is about 10730.4921135985. The cubic root of 115143461 is about 486.4965443931.

Adding to 115143461 its reverse (164341511), we get a palindrome (279484972).

The spelling of 115143461 in words is "one hundred fifteen million, one hundred forty-three thousand, four hundred sixty-one".