259198106 has 4 divisors (see below), whose sum is σ = 388797162. Its totient is φ = 129599052.

The previous prime is 259198103. The next prime is 259198111. The reversal of 259198106 is 601891952.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 239475625 + 19722481 = 15475^2 + 4441^2 .

It is not an unprimeable number, because it can be changed into a prime (259198103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64799525 + ... + 64799528.

Almost surely, 2^259198106 is an apocalyptic number.

259198106 is a deficient number, since it is larger than the sum of its proper divisors (129599056).

259198106 is a wasteful number, since it uses less digits than its factorization.

259198106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129599055.

The product of its (nonzero) digits is 38880, while the sum is 41.

The square root of 259198106 is about 16099.6306168806. The cubic root of 259198106 is about 637.5935885156.

The spelling of 259198106 in words is "two hundred fifty-nine million, one hundred ninety-eight thousand, one hundred six".