2101437 has 16 divisors (see below), whose sum is σ = 3353280. Its totient is φ = 1292976.

The previous prime is 2101433. The next prime is 2101439. The reversal of 2101437 is 7341012.

It is not a de Polignac number, because 2101437 - 2² = 2101433 is a prime.

2101437 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2643 + ... + 3344.

It is an arithmetic number, because the mean of its divisors is an integer number (209580).

2^2101437 is an apocalyptic number.

2101437 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2101437 is a deficient number, since it is larger than the sum of its proper divisors (1251843).

2101437 is a wasteful number, since it uses less digits than its factorization.

2101437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6009 (or 6003 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 2101437 is about 1449.6334019331. The cubic root of 2101437 is about 128.0871192397.

Adding to 2101437 its reverse (7341012), we get a palindrome (9442449).

The spelling of 2101437 in words is "two million, one hundred one thousand, four hundred thirty-seven".