29870149 has 2 divisors, whose sum is σ = 29870150. Its totient is φ = 29870148.

The previous prime is 29870131. The next prime is 29870171. The reversal of 29870149 is 94107892.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28547649 + 1322500 = 5343^2 + 1150^2 .

It is a cyclic number.

It is not a de Polignac number, because 29870149 - 2⁵ = 29870117 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29870129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14935074 + 14935075.

It is an arithmetic number, because the mean of its divisors is an integer number (14935075).

Almost surely, 2^29870149 is an apocalyptic number.

It is an amenable number.

29870149 is a deficient number, since it is larger than the sum of its proper divisors (1).

29870149 is an equidigital number, since it uses as much as digits as its factorization.

29870149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 29870149 is about 5465.3590001024. The cubic root of 29870149 is about 310.2742941682.

The spelling of 29870149 in words is "twenty-nine million, eight hundred seventy thousand, one hundred forty-nine".