29205145 has 4 divisors (see below), whose sum is σ = 35046180. Its totient is φ = 23364112.

The previous prime is 29205119. The next prime is 29205149. The reversal of 29205145 is 54150292.

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 3924361 + 25280784 = 1981^2 + 5028^2 .

It is a cyclic number.

It is not a de Polignac number, because 29205145 - 2⁹ = 29204633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29205149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2920510 + ... + 2920519.

It is an arithmetic number, because the mean of its divisors is an integer number (8761545).

Almost surely, 2^29205145 is an apocalyptic number.

It is an amenable number.

29205145 is a deficient number, since it is larger than the sum of its proper divisors (5841035).

29205145 is an equidigital number, since it uses as much as digits as its factorization.

29205145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5841034.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 29205145 is about 5404.1784759573. The cubic root of 29205145 is about 307.9544297847.

The spelling of 29205145 in words is "twenty-nine million, two hundred five thousand, one hundred forty-five".