1450991237 has 2 divisors, whose sum is σ = 1450991238. Its totient is φ = 1450991236.

The previous prime is 1450991233. The next prime is 1450991279. The reversal of 1450991237 is 7321990541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 777796321 + 673194916 = 27889^2 + 25946^2 .

It is an emirp because it is prime and its reverse (7321990541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1450991237 - 2² = 1450991233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1450991194 and 1450991203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1450991233) 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, 725495618 + 725495619.

It is an arithmetic number, because the mean of its divisors is an integer number (725495619).

Almost surely, 2^1450991237 is an apocalyptic number.

It is an amenable number.

1450991237 is a deficient number, since it is larger than the sum of its proper divisors (1).

1450991237 is an equidigital number, since it uses as much as digits as its factorization.

1450991237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 1450991237 is about 38091.8788851377. The cubic root of 1450991237 is about 1132.1090527964.

The spelling of 1450991237 in words is "one billion, four hundred fifty million, nine hundred ninety-one thousand, two hundred thirty-seven".