29949145 has 4 divisors (see below), whose sum is σ = 35938980. Its totient is φ = 23959312.

The previous prime is 29949133. The next prime is 29949203. The reversal of 29949145 is 54194992.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18088009 + 11861136 = 4253^2 + 3444^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29949145 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2994910 + ... + 2994919.

It is an arithmetic number, because the mean of its divisors is an integer number (8984745).

Almost surely, 2^29949145 is an apocalyptic number.

It is an amenable number.

29949145 is a deficient number, since it is larger than the sum of its proper divisors (5989835).

29949145 is an equidigital number, since it uses as much as digits as its factorization.

29949145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5989834.

The product of its digits is 116640, while the sum is 43.

The square root of 29949145 is about 5472.5812008594. The cubic root of 29949145 is about 310.5475753927.

The spelling of 29949145 in words is "twenty-nine million, nine hundred forty-nine thousand, one hundred forty-five".