29815142 has 16 divisors (see below), whose sum is σ = 53802240. Its totient is φ = 12105288.

The previous prime is 29815141. The next prime is 29815147. The reversal of 29815142 is 24151892.

It is a junction number, because it is equal to n+sod(n) for n = 29815099 and 29815108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29815141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55778 + ... + 56309.

It is an arithmetic number, because the mean of its divisors is an integer number (3362640).

Almost surely, 2^29815142 is an apocalyptic number.

29815142 is a deficient number, since it is larger than the sum of its proper divisors (23987098).

29815142 is a wasteful number, since it uses less digits than its factorization.

29815142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112115.

The product of its digits is 5760, while the sum is 32.

The square root of 29815142 is about 5460.3243493404. The cubic root of 29815142 is about 310.0837165506.

The spelling of 29815142 in words is "twenty-nine million, eight hundred fifteen thousand, one hundred forty-two".