1406221337 has 2 divisors, whose sum is σ = 1406221338. Its totient is φ = 1406221336.

The previous prime is 1406221307. The next prime is 1406221367. The reversal of 1406221337 is 7331226041.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1406221307) and next prime (1406221367).

It can be written as a sum of positive squares in only one way, i.e., 1353062656 + 53158681 = 36784^2 + 7291^2 .

It is an emirp because it is prime and its reverse (7331226041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1406221337 - 2⁶ = 1406221273 is a prime.

It is not a weakly prime, because it can be changed into another prime (1406221307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703110668 + 703110669.

It is an arithmetic number, because the mean of its divisors is an integer number (703110669).

Almost surely, 2^1406221337 is an apocalyptic number.

It is an amenable number.

1406221337 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406221337 is an equidigital number, since it uses as much as digits as its factorization.

1406221337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 1406221337 is about 37499.6178247192. The cubic root of 1406221337 is about 1120.3435747058.

Adding to 1406221337 its reverse (7331226041), we get a palindrome (8737447378).

The spelling of 1406221337 in words is "one billion, four hundred six million, two hundred twenty-one thousand, three hundred thirty-seven".