100157858 has 4 divisors (see below), whose sum is σ = 150236790. Its totient is φ = 50078928.

The previous prime is 100157833. The next prime is 100157867. The reversal of 100157858 is 858751001.

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

It can be written as a sum of positive squares in only one way, i.e., 88303609 + 11854249 = 9397^2 + 3443^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25039463 + ... + 25039466.

Almost surely, 2^100157858 is an apocalyptic number.

100157858 is a deficient number, since it is larger than the sum of its proper divisors (50078932).

100157858 is an equidigital number, since it uses as much as digits as its factorization.

100157858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50078931.

The product of its (nonzero) digits is 11200, while the sum is 35.

The square root of 100157858 is about 10007.8897875626. The cubic root of 100157858 is about 464.4029922679.

The spelling of 100157858 in words is "one hundred million, one hundred fifty-seven thousand, eight hundred fifty-eight".