1682496149 has 2 divisors, whose sum is σ = 1682496150. Its totient is φ = 1682496148.

The previous prime is 1682496143. The next prime is 1682496157. The reversal of 1682496149 is 9416942861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 921122500 + 761373649 = 30350^2 + 27593^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1682496149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1682496097 and 1682496106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1682496143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 841248074 + 841248075.

It is an arithmetic number, because the mean of its divisors is an integer number (841248075).

Almost surely, 2^1682496149 is an apocalyptic number.

It is an amenable number.

1682496149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1682496149 is an equidigital number, since it uses as much as digits as its factorization.

1682496149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 50.

The square root of 1682496149 is about 41018.2416614852. The cubic root of 1682496149 is about 1189.3728656579.

The spelling of 1682496149 in words is "one billion, six hundred eighty-two million, four hundred ninety-six thousand, one hundred forty-nine".