5431132145 has 4 divisors (see below), whose sum is σ = 6517358580. Its totient is φ = 4344905712.

The previous prime is 5431132129. The next prime is 5431132181. The reversal of 5431132145 is 5412311345.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3875934049 + 1555198096 = 62257^2 + 39436^2 .

It is a cyclic number.

It is not a de Polignac number, because 5431132145 - 2⁴ = 5431132129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 543113210 + ... + 543113219.

It is an arithmetic number, because the mean of its divisors is an integer number (1629339645).

Almost surely, 2^5431132145 is an apocalyptic number.

It is an amenable number.

5431132145 is a deficient number, since it is larger than the sum of its proper divisors (1086226435).

5431132145 is a wasteful number, since it uses less digits than its factorization.

5431132145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086226434.

The product of its digits is 7200, while the sum is 29.

The square root of 5431132145 is about 73696.2152691710. The cubic root of 5431132145 is about 1757.7757008835.

The spelling of 5431132145 in words is "five billion, four hundred thirty-one million, one hundred thirty-two thousand, one hundred forty-five".