29191045 has 8 divisors (see below), whose sum is σ = 37723896. Its totient is φ = 21556416.

The previous prime is 29191031. The next prime is 29191051. The reversal of 29191045 is 54019192.

It can be written as a sum of positive squares in 4 ways, for example, as 3038049 + 26152996 = 1743^2 + 5114^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29191045 - 2⁹ = 29190533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29190998 and 29191016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224482 + ... + 224611.

It is an arithmetic number, because the mean of its divisors is an integer number (4715487).

Almost surely, 2^29191045 is an apocalyptic number.

It is an amenable number.

29191045 is a deficient number, since it is larger than the sum of its proper divisors (8532851).

29191045 is a wasteful number, since it uses less digits than its factorization.

29191045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449111.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 29191045 is about 5402.8737723549. The cubic root of 29191045 is about 307.9048625317.

The spelling of 29191045 in words is "twenty-nine million, one hundred ninety-one thousand, forty-five".