45162131 has 4 divisors (see below), whose sum is σ = 51613872. Its totient is φ = 38710392.

The previous prime is 45162127. The next prime is 45162151. The reversal of 45162131 is 13126154.

45162131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 45162131 - 2² = 45162127 is a prime.

It is a super-2 number, since 2×45162131² = 4079236152922322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45162097 and 45162106.

It is not an unprimeable number, because it can be changed into a prime (45162151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3225860 + ... + 3225873.

It is an arithmetic number, because the mean of its divisors is an integer number (12903468).

Almost surely, 2^45162131 is an apocalyptic number.

45162131 is a deficient number, since it is larger than the sum of its proper divisors (6451741).

45162131 is an equidigital number, since it uses as much as digits as its factorization.

45162131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6451740.

The product of its digits is 720, while the sum is 23.

The square root of 45162131 is about 6720.2775984330. The cubic root of 45162131 is about 356.1159907990.

Adding to 45162131 its reverse (13126154), we get a palindrome (58288285).

The spelling of 45162131 in words is "forty-five million, one hundred sixty-two thousand, one hundred thirty-one".