49153121 has 2 divisors, whose sum is σ = 49153122. Its totient is φ = 49153120.

The previous prime is 49153063. The next prime is 49153123. The reversal of 49153121 is 12135194.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42393121 + 6760000 = 6511^2 + 2600^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49153121 is a prime.

Together with 49153123, 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 (49153123) 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, 24576560 + 24576561.

It is an arithmetic number, because the mean of its divisors is an integer number (24576561).

Almost surely, 2^49153121 is an apocalyptic number.

It is an amenable number.

49153121 is a deficient number, since it is larger than the sum of its proper divisors (1).

49153121 is an equidigital number, since it uses as much as digits as its factorization.

49153121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 26.

The square root of 49153121 is about 7010.9286831346. The cubic root of 49153121 is about 366.3113423716.

The spelling of 49153121 in words is "forty-nine million, one hundred fifty-three thousand, one hundred twenty-one".