1155908423 has 2 divisors, whose sum is σ = 1155908424. Its totient is φ = 1155908422.

The previous prime is 1155908417. The next prime is 1155908503. The reversal of 1155908423 is 3248095511.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3248095511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1155908423 - 2⁸ = 1155908167 is a prime.

It is a super-3 number, since 3×1155908423³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155908023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577954211 + 577954212.

It is an arithmetic number, because the mean of its divisors is an integer number (577954212).

Almost surely, 2^1155908423 is an apocalyptic number.

1155908423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155908423 is an equidigital number, since it uses as much as digits as its factorization.

1155908423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 1155908423 is about 33998.6532527393. The cubic root of 1155908423 is about 1049.4807479451.

The spelling of 1155908423 in words is "one billion, one hundred fifty-five million, nine hundred eight thousand, four hundred twenty-three".