101983995 has 16 divisors (see below), whose sum is σ = 181305120. Its totient is φ = 54391392.

The previous prime is 101983979. The next prime is 101984027. The reversal of 101983995 is 599389101.

It is not a de Polignac number, because 101983995 - 2⁴ = 101983979 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 101983995.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377584 + ... + 377853.

It is an arithmetic number, because the mean of its divisors is an integer number (11331570).

Almost surely, 2^101983995 is an apocalyptic number.

101983995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

101983995 is a deficient number, since it is larger than the sum of its proper divisors (79321125).

101983995 is an equidigital number, since it uses as much as digits as its factorization.

101983995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755451 (or 755445 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 45.

The square root of 101983995 is about 10098.7125417055. The cubic root of 101983995 is about 467.2084334457.

The spelling of 101983995 in words is "one hundred one million, nine hundred eighty-three thousand, nine hundred ninety-five".