1456156391 has 2 divisors, whose sum is σ = 1456156392. Its totient is φ = 1456156390.

The previous prime is 1456156379. The next prime is 1456156393. The reversal of 1456156391 is 1936516541.

It is a strong prime.

It is an emirp because it is prime and its reverse (1936516541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1456156391 - 2²² = 1451962087 is a prime.

Together with 1456156393, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1456156393) 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, 728078195 + 728078196.

It is an arithmetic number, because the mean of its divisors is an integer number (728078196).

Almost surely, 2^1456156391 is an apocalyptic number.

1456156391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1456156391 is an equidigital number, since it uses as much as digits as its factorization.

1456156391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 41.

The square root of 1456156391 is about 38159.6172805755. The cubic root of 1456156391 is about 1133.4508005599.

The spelling of 1456156391 in words is "one billion, four hundred fifty-six million, one hundred fifty-six thousand, three hundred ninety-one".