49148689 has 2 divisors, whose sum is σ = 49148690. Its totient is φ = 49148688.

The previous prime is 49148681. The next prime is 49148719. The reversal of 49148689 is 98684194.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38651089 + 10497600 = 6217^2 + 3240^2 .

It is a cyclic number.

It is not a de Polignac number, because 49148689 - 2³ = 49148681 is a prime.

It is not a weakly prime, because it can be changed into another prime (49148681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24574344 + 24574345.

It is an arithmetic number, because the mean of its divisors is an integer number (24574345).

Almost surely, 2^49148689 is an apocalyptic number.

It is an amenable number.

49148689 is a deficient number, since it is larger than the sum of its proper divisors (1).

49148689 is an equidigital number, since it uses as much as digits as its factorization.

49148689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 49.

The square root of 49148689 is about 7010.6125980545. The cubic root of 49148689 is about 366.3003322829.

The spelling of 49148689 in words is "forty-nine million, one hundred forty-eight thousand, six hundred eighty-nine".