29242981 has 2 divisors, whose sum is σ = 29242982. Its totient is φ = 29242980.

The previous prime is 29242979. The next prime is 29243003. The reversal of 29242981 is 18924292.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27720225 + 1522756 = 5265^2 + 1234^2 .

It is a cyclic number.

It is not a de Polignac number, because 29242981 - 2¹ = 29242979 is a prime.

It is a super-2 number, since 2×29242981² = 1710303875532722, which contains 22 as substring.

Together with 29242979, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 29242981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29242481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14621490 + 14621491.

It is an arithmetic number, because the mean of its divisors is an integer number (14621491).

Almost surely, 2^29242981 is an apocalyptic number.

It is an amenable number.

29242981 is a deficient number, since it is larger than the sum of its proper divisors (1).

29242981 is an equidigital number, since it uses as much as digits as its factorization.

29242981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 37.

The square root of 29242981 is about 5407.6779674829. The cubic root of 29242981 is about 308.0873599665.

The spelling of 29242981 in words is "twenty-nine million, two hundred forty-two thousand, nine hundred eighty-one".