29981153 has 2 divisors, whose sum is σ = 29981154. Its totient is φ = 29981152.

The previous prime is 29981131. The next prime is 29981207. The reversal of 29981153 is 35118992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25725184 + 4255969 = 5072^2 + 2063^2 .

It is a cyclic number.

It is not a de Polignac number, because 29981153 - 2⁸ = 29980897 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (29981453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14990576 + 14990577.

It is an arithmetic number, because the mean of its divisors is an integer number (14990577).

Almost surely, 2^29981153 is an apocalyptic number.

It is an amenable number.

29981153 is a deficient number, since it is larger than the sum of its proper divisors (1).

29981153 is an equidigital number, since it uses as much as digits as its factorization.

29981153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 38.

The square root of 29981153 is about 5475.5048169096. The cubic root of 29981153 is about 310.6581680633.

The spelling of 29981153 in words is "twenty-nine million, nine hundred eighty-one thousand, one hundred fifty-three".