156116393 has 8 divisors (see below), whose sum is σ = 158320008. Its totient is φ = 153927424.

The previous prime is 156116371. The next prime is 156116417. The reversal of 156116393 is 393611651.

It can be written as a sum of positive squares in 4 ways, for example, as 46348864 + 109767529 = 6808^2 + 10477^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 156116393 - 2⁶ = 156116329 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (156116693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18755 + ... + 25767.

It is an arithmetic number, because the mean of its divisors is an integer number (19790001).

Almost surely, 2^156116393 is an apocalyptic number.

It is an amenable number.

156116393 is a deficient number, since it is larger than the sum of its proper divisors (2203615).

156116393 is a wasteful number, since it uses less digits than its factorization.

156116393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7323.

The product of its digits is 14580, while the sum is 35.

The square root of 156116393 is about 12494.6545770581. The cubic root of 156116393 is about 538.4551100337.

The spelling of 156116393 in words is "one hundred fifty-six million, one hundred sixteen thousand, three hundred ninety-three".