6461129 has 2 divisors, whose sum is σ = 6461130. Its totient is φ = 6461128.

The previous prime is 6461123. The next prime is 6461131. The reversal of 6461129 is 9211646.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4644025 + 1817104 = 2155^2 + 1348^2 .

It is a cyclic number.

It is not a de Polignac number, because 6461129 - 2⁸ = 6460873 is a prime.

Together with 6461131, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6461123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3230564 + 3230565.

It is an arithmetic number, because the mean of its divisors is an integer number (3230565).

Almost surely, 2^6461129 is an apocalyptic number.

It is an amenable number.

6461129 is a deficient number, since it is larger than the sum of its proper divisors (1).

6461129 is an equidigital number, since it uses as much as digits as its factorization.

6461129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 6461129 is about 2541.8750952791. The cubic root of 6461129 is about 186.2527972794.

The spelling of 6461129 in words is "six million, four hundred sixty-one thousand, one hundred twenty-nine".