1390277227 has 4 divisors (see below), whose sum is σ = 1390368736. Its totient is φ = 1390185720.

The previous prime is 1390277219. The next prime is 1390277261. The reversal of 1390277227 is 7227720931.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1390277227 - 2³ = 1390277219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1390277227.

It is not an unprimeable number, because it can be changed into a prime (1390277327) 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 in 3 ways as a sum of consecutive naturals, for example, 16899 + ... + 55372.

It is an arithmetic number, because the mean of its divisors is an integer number (347592184).

Almost surely, 2^1390277227 is an apocalyptic number.

1390277227 is a deficient number, since it is larger than the sum of its proper divisors (91509).

1390277227 is an equidigital number, since it uses as much as digits as its factorization.

1390277227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91508.

The product of its (nonzero) digits is 74088, while the sum is 40.

The square root of 1390277227 is about 37286.4214828937. The cubic root of 1390277227 is about 1116.0932193792.

The spelling of 1390277227 in words is "one billion, three hundred ninety million, two hundred seventy-seven thousand, two hundred twenty-seven".