49180121 has 2 divisors, whose sum is σ = 49180122. Its totient is φ = 49180120.

The previous prime is 49180111. The next prime is 49180127. The reversal of 49180121 is 12108194.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46730896 + 2449225 = 6836^2 + 1565^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49180121 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49180127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24590060 + 24590061.

It is an arithmetic number, because the mean of its divisors is an integer number (24590061).

Almost surely, 2^49180121 is an apocalyptic number.

It is an amenable number.

49180121 is a deficient number, since it is larger than the sum of its proper divisors (1).

49180121 is an equidigital number, since it uses as much as digits as its factorization.

49180121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 49180121 is about 7012.8539839355. The cubic root of 49180121 is about 366.3784021748.

The spelling of 49180121 in words is "forty-nine million, one hundred eighty thousand, one hundred twenty-one".