29745081 has 6 divisors (see below), whose sum is σ = 42965130. Its totient is φ = 19830048.

The previous prime is 29745073. The next prime is 29745083. The reversal of 29745081 is 18054792.

It can be written as a sum of positive squares in only one way, i.e., 21013056 + 8732025 = 4584^2 + 2955^2 .

It is not a de Polignac number, because 29745081 - 2³ = 29745073 is a prime.

It is a super-2 number, since 2×29745081² = 1769539687393122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (29745083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1652496 + ... + 1652513.

It is an arithmetic number, because the mean of its divisors is an integer number (7160855).

Almost surely, 2^29745081 is an apocalyptic number.

It is an amenable number.

29745081 is a deficient number, since it is larger than the sum of its proper divisors (13220049).

29745081 is a wasteful number, since it uses less digits than its factorization.

29745081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305015 (or 3305012 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 29745081 is about 5453.9051146862. The cubic root of 29745081 is about 309.8406430351.

The spelling of 29745081 in words is "twenty-nine million, seven hundred forty-five thousand, eighty-one".