29136661 has 2 divisors, whose sum is σ = 29136662. Its totient is φ = 29136660.

The previous prime is 29136643. The next prime is 29136673. The reversal of 29136661 is 16663192.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18541636 + 10595025 = 4306^2 + 3255^2 .

It is a cyclic number.

It is not a de Polignac number, because 29136661 - 2⁵ = 29136629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29136161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14568330 + 14568331.

It is an arithmetic number, because the mean of its divisors is an integer number (14568331).

Almost surely, 2^29136661 is an apocalyptic number.

It is an amenable number.

29136661 is a deficient number, since it is larger than the sum of its proper divisors (1).

29136661 is an equidigital number, since it uses as much as digits as its factorization.

29136661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 34.

The square root of 29136661 is about 5397.8385489008. The cubic root of 29136661 is about 307.7135309351.

The spelling of 29136661 in words is "twenty-nine million, one hundred thirty-six thousand, six hundred sixty-one".