12150919 has 8 divisors (see below), whose sum is σ = 13454208. Its totient is φ = 10880760.

The previous prime is 12150907. The next prime is 12150947. The reversal of 12150919 is 91905121.

12150919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12150919 - 2²¹ = 10053767 is a prime.

It is a super-2 number, since 2×12150919² = 295289665089122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12150989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7507 + ... + 8980.

It is an arithmetic number, because the mean of its divisors is an integer number (1681776).

Almost surely, 2^12150919 is an apocalyptic number.

12150919 is a deficient number, since it is larger than the sum of its proper divisors (1303289).

12150919 is a wasteful number, since it uses less digits than its factorization.

12150919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16565.

The product of its (nonzero) digits is 810, while the sum is 28.

The square root of 12150919 is about 3485.8168339716. The cubic root of 12150919 is about 229.8986257725.

It can be divided in two parts, 121 and 50919, that added together give a triangular number (51040 = T₃₁₉).

The spelling of 12150919 in words is "twelve million, one hundred fifty thousand, nine hundred nineteen".