2103001657 has 8 divisors (see below), whose sum is σ = 2143840712. Its totient is φ = 2062368000.

The previous prime is 2103001651. The next prime is 2103001661. The reversal of 2103001657 is 7561003012.

It can be written as a sum of positive squares in 4 ways, for example, as 66194496 + 2036807161 = 8136^2 + 45131^2 .

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 2103001657 - 2²³ = 2094613049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2103001651) 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, 30594 + ... + 71707.

It is an arithmetic number, because the mean of its divisors is an integer number (267980089).

Almost surely, 2^2103001657 is an apocalyptic number.

It is an amenable number.

2103001657 is a deficient number, since it is larger than the sum of its proper divisors (40839055).

2103001657 is a wasteful number, since it uses less digits than its factorization.

2103001657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102699.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 2103001657 is about 45858.4960176410. The cubic root of 2103001657 is about 1281.1890109315.

Adding to 2103001657 its reverse (7561003012), we get a palindrome (9664004669).

The spelling of 2103001657 in words is "two billion, one hundred three million, one thousand, six hundred fifty-seven".