101609998 has 16 divisors (see below), whose sum is σ = 181762560. Its totient is φ = 41653656.

The previous prime is 101609987. The next prime is 101610007. The reversal of 101609998 is 899906101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157458 + ... + 158101.

It is an arithmetic number, because the mean of its divisors is an integer number (11360160).

Almost surely, 2^101609998 is an apocalyptic number.

101609998 is a deficient number, since it is larger than the sum of its proper divisors (80152562).

101609998 is a wasteful number, since it uses less digits than its factorization.

101609998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315591.

The product of its (nonzero) digits is 34992, while the sum is 43.

The square root of 101609998 is about 10080.1784706423. The cubic root of 101609998 is about 466.6366163190.

The spelling of 101609998 in words is "one hundred one million, six hundred nine thousand, nine hundred ninety-eight".