100081739 has 4 divisors (see below), whose sum is σ = 100252824. Its totient is φ = 99910656.

The previous prime is 100081699. The next prime is 100081741. The reversal of 100081739 is 937180001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100081739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100081789) 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, 84662 + ... + 85835.

It is an arithmetic number, because the mean of its divisors is an integer number (25063206).

Almost surely, 2^100081739 is an apocalyptic number.

100081739 is a deficient number, since it is larger than the sum of its proper divisors (171085).

100081739 is an equidigital number, since it uses as much as digits as its factorization.

100081739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171084.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 100081739 is about 10004.0861151831. The cubic root of 100081739 is about 464.2853151961.

The spelling of 100081739 in words is "one hundred million, eighty-one thousand, seven hundred thirty-nine".