509142190 has 8 divisors (see below), whose sum is σ = 916455960. Its totient is φ = 203656872.

The previous prime is 509142181. The next prime is 509142217. The reversal of 509142190 is 91241905.

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

It is a super-2 number, since 2×509142190² = 518451539275992200, which contains 22 as substring.

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, 25457100 + ... + 25457119.

It is an arithmetic number, because the mean of its divisors is an integer number (114556995).

Almost surely, 2^509142190 is an apocalyptic number.

509142190 is a deficient number, since it is larger than the sum of its proper divisors (407313770).

509142190 is a wasteful number, since it uses less digits than its factorization.

509142190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50914226.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 509142190 is about 22564.1793557842. The cubic root of 509142190 is about 798.5087793450.

The spelling of 509142190 in words is "five hundred nine million, one hundred forty-two thousand, one hundred ninety".