61134287 has 2 divisors, whose sum is σ = 61134288. Its totient is φ = 61134286.

The previous prime is 61134257. The next prime is 61134317. The reversal of 61134287 is 78243116.

It is a balanced prime because it is at equal distance from previous prime (61134257) and next prime (61134317).

It is a cyclic number.

It is not a de Polignac number, because 61134287 - 2⁶ = 61134223 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61134247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30567143 + 30567144.

It is an arithmetic number, because the mean of its divisors is an integer number (30567144).

Almost surely, 2^61134287 is an apocalyptic number.

61134287 is a deficient number, since it is larger than the sum of its proper divisors (1).

61134287 is an equidigital number, since it uses as much as digits as its factorization.

61134287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 32.

The square root of 61134287 is about 7818.8417940255. The cubic root of 61134287 is about 393.9383702035.

The spelling of 61134287 in words is "sixty-one million, one hundred thirty-four thousand, two hundred eighty-seven".