156480091 has 2 divisors, whose sum is σ = 156480092. Its totient is φ = 156480090.

The previous prime is 156480089. The next prime is 156480097. The reversal of 156480091 is 190084651.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 156480091 - 2¹ = 156480089 is a prime.

Together with 156480089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (156480097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78240045 + 78240046.

It is an arithmetic number, because the mean of its divisors is an integer number (78240046).

Almost surely, 2^156480091 is an apocalyptic number.

156480091 is a deficient number, since it is larger than the sum of its proper divisors (1).

156480091 is an equidigital number, since it uses as much as digits as its factorization.

156480091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 156480091 is about 12509.2002542129. The cubic root of 156480091 is about 538.8729247232.

The spelling of 156480091 in words is "one hundred fifty-six million, four hundred eighty thousand, ninety-one".