45115143 has 4 divisors (see below), whose sum is σ = 60153528. Its totient is φ = 30076760.

The previous prime is 45115141. The next prime is 45115151. The reversal of 45115143 is 34151154.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45115143 - 2¹ = 45115141 is a prime.

It is a super-2 number, since 2×45115143² = 4070752255820898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45115141) 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, 7519188 + ... + 7519193.

It is an arithmetic number, because the mean of its divisors is an integer number (15038382).

Almost surely, 2^45115143 is an apocalyptic number.

45115143 is a deficient number, since it is larger than the sum of its proper divisors (15038385).

45115143 is a wasteful number, since it uses less digits than its factorization.

45115143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15038384.

The product of its digits is 1200, while the sum is 24.

The square root of 45115143 is about 6716.7807020923. The cubic root of 45115143 is about 355.9924434494.

Adding to 45115143 its reverse (34151154), we get a palindrome (79266297).

The spelling of 45115143 in words is "forty-five million, one hundred fifteen thousand, one hundred forty-three".