29140145 has 8 divisors (see below), whose sum is σ = 35119656. Its totient is φ = 23211136.

The previous prime is 29140087. The next prime is 29140147. The reversal of 29140145 is 54104192.

It can be written as a sum of positive squares in 4 ways, for example, as 6974881 + 22165264 = 2641^2 + 4708^2 .

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 29140145 - 2⁶ = 29140081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29140147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11342 + ... + 13671.

It is an arithmetic number, because the mean of its divisors is an integer number (4389957).

Almost surely, 2^29140145 is an apocalyptic number.

It is an amenable number.

29140145 is a deficient number, since it is larger than the sum of its proper divisors (5979511).

29140145 is a wasteful number, since it uses less digits than its factorization.

29140145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25251.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 29140145 is about 5398.1612610221. The cubic root of 29140145 is about 307.7257953376.

The spelling of 29140145 in words is "twenty-nine million, one hundred forty thousand, one hundred forty-five".