101439998 has 32 divisors (see below), whose sum is σ = 174320640. Its totient is φ = 43848000.

The previous prime is 101439983. The next prime is 101440013. The reversal of 101439998 is 899934101.

It is an interprime number because it is at equal distance from previous prime (101439983) and next prime (101440013).

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 38978 + ... + 41498.

It is an arithmetic number, because the mean of its divisors is an integer number (5447520).

Almost surely, 2^101439998 is an apocalyptic number.

101439998 is a deficient number, since it is larger than the sum of its proper divisors (72880642).

101439998 is a wasteful number, since it uses less digits than its factorization.

101439998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 101439998 is about 10071.7425503237. The cubic root of 101439998 is about 466.3762334567.

The spelling of 101439998 in words is "one hundred one million, four hundred thirty-nine thousand, nine hundred ninety-eight".