49494121 has 2 divisors, whose sum is σ = 49494122. Its totient is φ = 49494120.

The previous prime is 49494101. The next prime is 49494131. The reversal of 49494121 is 12149494.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29593600 + 19900521 = 5440^2 + 4461^2 .

It is a cyclic number.

It is not a de Polignac number, because 49494121 - 2¹¹ = 49492073 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (49494101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24747060 + 24747061.

It is an arithmetic number, because the mean of its divisors is an integer number (24747061).

Almost surely, 2^49494121 is an apocalyptic number.

It is an amenable number.

49494121 is a deficient number, since it is larger than the sum of its proper divisors (1).

49494121 is an equidigital number, since it uses as much as digits as its factorization.

49494121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 34.

The square root of 49494121 is about 7035.2058249919. The cubic root of 49494121 is about 367.1564865105.

The spelling of 49494121 in words is "forty-nine million, four hundred ninety-four thousand, one hundred twenty-one".