29140649 has 2 divisors, whose sum is σ = 29140650. Its totient is φ = 29140648.

The previous prime is 29140637. The next prime is 29140673. The reversal of 29140649 is 94604192.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28944400 + 196249 = 5380^2 + 443^2 .

It is a cyclic number.

It is not a de Polignac number, because 29140649 - 2⁸ = 29140393 is a prime.

It is not a weakly prime, because it can be changed into another prime (29140049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14570324 + 14570325.

It is an arithmetic number, because the mean of its divisors is an integer number (14570325).

Almost surely, 2^29140649 is an apocalyptic number.

It is an amenable number.

29140649 is a deficient number, since it is larger than the sum of its proper divisors (1).

29140649 is an equidigital number, since it uses as much as digits as its factorization.

29140649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 29140649 is about 5398.2079433827. The cubic root of 29140649 is about 307.7275694412.

The spelling of 29140649 in words is "twenty-nine million, one hundred forty thousand, six hundred forty-nine".