29987141 has 2 divisors, whose sum is σ = 29987142. Its totient is φ = 29987140.

The previous prime is 29987129. The next prime is 29987161. The reversal of 29987141 is 14178992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29430625 + 556516 = 5425^2 + 746^2 .

It is a cyclic number.

It is not a de Polignac number, because 29987141 - 2⁶ = 29987077 is a prime.

It is a super-3 number, since 3×29987141³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29987161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14993570 + 14993571.

It is an arithmetic number, because the mean of its divisors is an integer number (14993571).

Almost surely, 2^29987141 is an apocalyptic number.

It is an amenable number.

29987141 is a deficient number, since it is larger than the sum of its proper divisors (1).

29987141 is an equidigital number, since it uses as much as digits as its factorization.

29987141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 41.

The square root of 29987141 is about 5476.0515885079. The cubic root of 29987141 is about 310.6788488032.

The spelling of 29987141 in words is "twenty-nine million, nine hundred eighty-seven thousand, one hundred forty-one".