199142580 has 96 divisors (see below), whose sum is σ = 686294784. Its totient is φ = 42015744.

The previous prime is 199142527. The next prime is 199142627. The reversal of 199142580 is 85241991.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 12777 + ... + 23696.

It is an arithmetic number, because the mean of its divisors is an integer number (7148904).

Almost surely, 2^199142580 is an apocalyptic number.

199142580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199142580 is an abundant number, since it is smaller than the sum of its proper divisors (487152204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

199142580 is a wasteful number, since it uses less digits than its factorization.

199142580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36505 (or 36503 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 199142580 is about 14111.7886888941. The cubic root of 199142580 is about 583.9666467785.

The spelling of 199142580 in words is "one hundred ninety-nine million, one hundred forty-two thousand, five hundred eighty".