29983157 has 2 divisors, whose sum is σ = 29983158. Its totient is φ = 29983156.

The previous prime is 29983141. The next prime is 29983183. The reversal of 29983157 is 75138992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19704721 + 10278436 = 4439^2 + 3206^2 .

It is a cyclic number.

It is not a de Polignac number, because 29983157 - 2⁴ = 29983141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29983117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14991578 + 14991579.

It is an arithmetic number, because the mean of its divisors is an integer number (14991579).

Almost surely, 2^29983157 is an apocalyptic number.

It is an amenable number.

29983157 is a deficient number, since it is larger than the sum of its proper divisors (1).

29983157 is an equidigital number, since it uses as much as digits as its factorization.

29983157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 44.

The square root of 29983157 is about 5475.6878106773. The cubic root of 29983157 is about 310.6650895794.

The spelling of 29983157 in words is "twenty-nine million, nine hundred eighty-three thousand, one hundred fifty-seven".