101981498 has 8 divisors (see below), whose sum is σ = 153305460. Its totient is φ = 50879680.

The previous prime is 101981497. The next prime is 101981501. The reversal of 101981498 is 894189101.

It can be written as a sum of positive squares in 2 ways, for example, as 100140049 + 1841449 = 10007^2 + 1357^2 .

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 (101981497) 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, 54383 + ... + 56226.

Almost surely, 2^101981498 is an apocalyptic number.

101981498 is a deficient number, since it is larger than the sum of its proper divisors (51323962).

101981498 is a wasteful number, since it uses less digits than its factorization.

101981498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111072.

The product of its (nonzero) digits is 20736, while the sum is 41.

The square root of 101981498 is about 10098.5889113282. The cubic root of 101981498 is about 467.2046203343.

The spelling of 101981498 in words is "one hundred one million, nine hundred eighty-one thousand, four hundred ninety-eight".