199145926 has 8 divisors (see below), whose sum is σ = 341393040. Its totient is φ = 85348248.

The previous prime is 199145911. The next prime is 199145981. The reversal of 199145926 is 629541991.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7112341 + ... + 7112368.

It is an arithmetic number, because the mean of its divisors is an integer number (42674130).

Almost surely, 2^199145926 is an apocalyptic number.

199145926 is a deficient number, since it is larger than the sum of its proper divisors (142247114).

199145926 is a wasteful number, since it uses less digits than its factorization.

199145926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14224718.

The product of its digits is 174960, while the sum is 46.

The square root of 199145926 is about 14111.9072417586. The cubic root of 199145926 is about 583.9699173689.

The spelling of 199145926 in words is "one hundred ninety-nine million, one hundred forty-five thousand, nine hundred twenty-six".