6465131142 has 16 divisors (see below), whose sum is σ = 12974396400. Its totient is φ = 2147688032.

The previous prime is 6465131131. The next prime is 6465131143. The reversal of 6465131142 is 2411315646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6465131143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1837017 + ... + 1840532.

It is an arithmetic number, because the mean of its divisors is an integer number (810899775).

Almost surely, 2^6465131142 is an apocalyptic number.

6465131142 is an abundant number, since it is smaller than the sum of its proper divisors (6509265258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6465131142 is a wasteful number, since it uses less digits than its factorization.

6465131142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3677847.

The product of its digits is 17280, while the sum is 33.

The square root of 6465131142 is about 80406.0392134820. The cubic root of 6465131142 is about 1862.9124547678.

Adding to 6465131142 its reverse (2411315646), we get a palindrome (8876446788).

The spelling of 6465131142 in words is "six billion, four hundred sixty-five million, one hundred thirty-one thousand, one hundred forty-two".