49163129 has 2 divisors, whose sum is σ = 49163130. Its totient is φ = 49163128.

The previous prime is 49163113. The next prime is 49163131. The reversal of 49163129 is 92136194.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41473600 + 7689529 = 6440^2 + 2773^2 .

It is a cyclic number.

It is not a de Polignac number, because 49163129 - 2⁴ = 49163113 is a prime.

Together with 49163131, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49163159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24581564 + 24581565.

It is an arithmetic number, because the mean of its divisors is an integer number (24581565).

Almost surely, 2^49163129 is an apocalyptic number.

It is an amenable number.

49163129 is a deficient number, since it is larger than the sum of its proper divisors (1).

49163129 is an equidigital number, since it uses as much as digits as its factorization.

49163129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 35.

The square root of 49163129 is about 7011.6423896260. The cubic root of 49163129 is about 366.3362020690.

The spelling of 49163129 in words is "forty-nine million, one hundred sixty-three thousand, one hundred twenty-nine".