19315089 has 12 divisors (see below), whose sum is σ = 27956916. Its totient is φ = 12850272.

The previous prime is 19315069. The next prime is 19315091. The reversal of 19315089 is 98051391.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11614464 + 7700625 = 3408^2 + 2775^2 .

It is not a de Polignac number, because 19315089 - 2⁵ = 19315057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19315069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3087 + ... + 6939.

It is an arithmetic number, because the mean of its divisors is an integer number (2329743).

Almost surely, 2^19315089 is an apocalyptic number.

It is an amenable number.

19315089 is a deficient number, since it is larger than the sum of its proper divisors (8641827).

19315089 is a wasteful number, since it uses less digits than its factorization.

19315089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4416 (or 4413 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The square root of 19315089 is about 4394.8935140683. The cubic root of 19315089 is about 268.3071448879.

The spelling of 19315089 in words is "nineteen million, three hundred fifteen thousand, eighty-nine".