19230112149 has 4 divisors (see below), whose sum is σ = 25640149536. Its totient is φ = 12820074764.

The previous prime is 19230112147. The next prime is 19230112151. The reversal of 19230112149 is 94121103291.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (19230112147) and next prime (19230112151).

It is a cyclic number.

It is not a de Polignac number, because 19230112149 - 2¹ = 19230112147 is a prime.

It is a super-3 number, since 3×19230112149³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19230112147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3205018689 + ... + 3205018694.

It is an arithmetic number, because the mean of its divisors is an integer number (6410037384).

Almost surely, 2^19230112149 is an apocalyptic number.

It is an amenable number.

19230112149 is a deficient number, since it is larger than the sum of its proper divisors (6410037387).

19230112149 is an equidigital number, since it uses as much as digits as its factorization.

19230112149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6410037386.

The product of its (nonzero) digits is 3888, while the sum is 33.

The spelling of 19230112149 in words is "nineteen billion, two hundred thirty million, one hundred twelve thousand, one hundred forty-nine".