1637412349 has 2 divisors, whose sum is σ = 1637412350. Its totient is φ = 1637412348.

The previous prime is 1637412347. The next prime is 1637412353. The reversal of 1637412349 is 9432147361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 976562500 + 660849849 = 31250^2 + 25707^2 .

It is a cyclic number.

It is not a de Polignac number, because 1637412349 - 2¹ = 1637412347 is a prime.

It is a super-2 number, since 2×1637412349² = 5362238401315395602, which contains 22 as substring.

Together with 1637412347, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1637412347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 818706174 + 818706175.

It is an arithmetic number, because the mean of its divisors is an integer number (818706175).

Almost surely, 2^1637412349 is an apocalyptic number.

It is an amenable number.

1637412349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1637412349 is an equidigital number, since it uses as much as digits as its factorization.

1637412349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 40.

The square root of 1637412349 is about 40464.9521067306. The cubic root of 1637412349 is about 1178.6531480051.

The spelling of 1637412349 in words is "one billion, six hundred thirty-seven million, four hundred twelve thousand, three hundred forty-nine".