2100157 has 8 divisors (see below), whose sum is σ = 2227712. Its totient is φ = 1976400.

The previous prime is 2100121. The next prime is 2100167. The reversal of 2100157 is 7510012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2100157 - 2¹⁹ = 1575869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2100157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232 + ... + 2062.

It is an arithmetic number, because the mean of its divisors is an integer number (278464).

2^2100157 is an apocalyptic number.

It is an amenable number.

2100157 is a deficient number, since it is larger than the sum of its proper divisors (127555).

2100157 is a wasteful number, since it uses less digits than its factorization.

2100157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899.

The product of its (nonzero) digits is 70, while the sum is 16.

The square root of 2100157 is about 1449.1918437529. The cubic root of 2100157 is about 128.0611077038.

Adding to 2100157 its reverse (7510012), we get a palindrome (9610169).

The spelling of 2100157 in words is "two million, one hundred thousand, one hundred fifty-seven".