100081357 has 4 divisors (see below), whose sum is σ = 100216800. Its totient is φ = 99945916.

The previous prime is 100081351. The next prime is 100081367. The reversal of 100081357 is 753180001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100081357 - 2¹⁹ = 99557069 is a prime.

It is a super-2 number, since 2×100081357² = 20032556037922898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100081351) 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, 66607 + ... + 68092.

It is an arithmetic number, because the mean of its divisors is an integer number (25054200).

Almost surely, 2^100081357 is an apocalyptic number.

It is an amenable number.

100081357 is a deficient number, since it is larger than the sum of its proper divisors (135443).

100081357 is an equidigital number, since it uses as much as digits as its factorization.

100081357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135442.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 100081357 is about 10004.0670229662. The cubic root of 100081357 is about 464.2847244882.

The spelling of 100081357 in words is "one hundred million, eighty-one thousand, three hundred fifty-seven".