2155192903 has 2 divisors, whose sum is σ = 2155192904. Its totient is φ = 2155192902.

The previous prime is 2155192877. The next prime is 2155192927. The reversal of 2155192903 is 3092915512.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2155192903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2155192973) 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 as a sum of consecutive naturals, namely, 1077596451 + 1077596452.

It is an arithmetic number, because the mean of its divisors is an integer number (1077596452).

Almost surely, 2^2155192903 is an apocalyptic number.

2155192903 is a deficient number, since it is larger than the sum of its proper divisors (1).

2155192903 is an equidigital number, since it uses as much as digits as its factorization.

2155192903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24300, while the sum is 37.

The square root of 2155192903 is about 46424.0552192503. The cubic root of 2155192903 is about 1291.7011594886.

The spelling of 2155192903 in words is "two billion, one hundred fifty-five million, one hundred ninety-two thousand, nine hundred three".