196515490 has 8 divisors (see below), whose sum is σ = 353727900. Its totient is φ = 78606192.

The previous prime is 196515481. The next prime is 196515491. The reversal of 196515490 is 94515691.

It can be written as a sum of positive squares in 2 ways, for example, as 196364169 + 151321 = 14013^2 + 389^2 .

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

It is not an unprimeable number, because it can be changed into a prime (196515491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9825765 + ... + 9825784.

Almost surely, 2^196515490 is an apocalyptic number.

196515490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

196515490 is a deficient number, since it is larger than the sum of its proper divisors (157212410).

196515490 is a wasteful number, since it uses less digits than its factorization.

196515490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19651556.

The product of its (nonzero) digits is 48600, while the sum is 40.

The square root of 196515490 is about 14018.3982679905. The cubic root of 196515490 is about 581.3873743208.

The spelling of 196515490 in words is "one hundred ninety-six million, five hundred fifteen thousand, four hundred ninety".