29125813 has 2 divisors, whose sum is σ = 29125814. Its totient is φ = 29125812.

The previous prime is 29125793. The next prime is 29125819. The reversal of 29125813 is 31852192.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28121809 + 1004004 = 5303^2 + 1002^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29125813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29125819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14562906 + 14562907.

It is an arithmetic number, because the mean of its divisors is an integer number (14562907).

Almost surely, 2^29125813 is an apocalyptic number.

It is an amenable number.

29125813 is a deficient number, since it is larger than the sum of its proper divisors (1).

29125813 is an equidigital number, since it uses as much as digits as its factorization.

29125813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 31.

The square root of 29125813 is about 5396.8336087006. The cubic root of 29125813 is about 307.6753374631.

The spelling of 29125813 in words is "twenty-nine million, one hundred twenty-five thousand, eight hundred thirteen".