45143911 has 4 divisors (see below), whose sum is σ = 46245024. Its totient is φ = 44042800.

The previous prime is 45143899. The next prime is 45143921. The reversal of 45143911 is 11934154.

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 45143911 - 2¹³ = 45135719 is a prime.

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 45143911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45143921) 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, 550495 + ... + 550576.

It is an arithmetic number, because the mean of its divisors is an integer number (11561256).

Almost surely, 2^45143911 is an apocalyptic number.

45143911 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

45143911 is a deficient number, since it is larger than the sum of its proper divisors (1101113).

45143911 is a wasteful number, since it uses less digits than its factorization.

45143911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101112.

The product of its digits is 2160, while the sum is 28.

The square root of 45143911 is about 6718.9218629182. The cubic root of 45143911 is about 356.0680944313.

The spelling of 45143911 in words is "forty-five million, one hundred forty-three thousand, nine hundred eleven".