1390156127 has 16 divisors (see below), whose sum is σ = 1459745280. Its totient is φ = 1322692800.

The previous prime is 1390156121. The next prime is 1390156169. The reversal of 1390156127 is 7216510931.

It is not a de Polignac number, because 1390156127 - 2⁶ = 1390156063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390156121) 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 in 15 ways as a sum of consecutive naturals, for example, 266252 + ... + 271422.

It is an arithmetic number, because the mean of its divisors is an integer number (91234080).

Almost surely, 2^1390156127 is an apocalyptic number.

1390156127 is a deficient number, since it is larger than the sum of its proper divisors (69589153).

1390156127 is an equidigital number, since it uses as much as digits as its factorization.

1390156127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5374.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 1390156127 is about 37284.7975319701. The cubic root of 1390156127 is about 1116.0608126979.

The spelling of 1390156127 in words is "one billion, three hundred ninety million, one hundred fifty-six thousand, one hundred twenty-seven".