662146131 has 4 divisors (see below), whose sum is σ = 882861512. Its totient is φ = 441430752.

The previous prime is 662146127. The next prime is 662146139. The reversal of 662146131 is 131641266.

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

It is not a de Polignac number, because 662146131 - 2² = 662146127 is a prime.

It is a super-2 number, since 2×662146131² = 876874997596538322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (662146139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110357686 + ... + 110357691.

It is an arithmetic number, because the mean of its divisors is an integer number (220715378).

Almost surely, 2^662146131 is an apocalyptic number.

662146131 is a deficient number, since it is larger than the sum of its proper divisors (220715381).

662146131 is a wasteful number, since it uses less digits than its factorization.

662146131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220715380.

The product of its digits is 5184, while the sum is 30.

The square root of 662146131 is about 25732.2002751416. The cubic root of 662146131 is about 871.6014590660.

Adding to 662146131 its reverse (131641266), we get a palindrome (793787397).

The spelling of 662146131 in words is "six hundred sixty-two million, one hundred forty-six thousand, one hundred thirty-one".