2100634 has 4 divisors (see below), whose sum is σ = 3150954. Its totient is φ = 1050316.

The previous prime is 2100629. The next prime is 2100649. The reversal of 2100634 is 4360012.

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., 1814409 + 286225 = 1347^2 + 535^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525157 + ... + 525160.

2^2100634 is an apocalyptic number.

2100634 is a deficient number, since it is larger than the sum of its proper divisors (1050320).

2100634 is a wasteful number, since it uses less digits than its factorization.

2100634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050319.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2100634 is about 1449.3564088933. The cubic root of 2100634 is about 128.0708023003.

Adding to 2100634 its reverse (4360012), we get a palindrome (6460646).

The spelling of 2100634 in words is "two million, one hundred thousand, six hundred thirty-four".