2130557 has 16 divisors (see below), whose sum is σ = 2564352. Its totient is φ = 1744320.

The previous prime is 2130539. The next prime is 2130577. The reversal of 2130557 is 7550312.

It is a cyclic number.

It is not a de Polignac number, because 2130557 - 2⁶ = 2130493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130577) 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, 6563 + ... + 6879.

It is an arithmetic number, because the mean of its divisors is an integer number (160272).

2^2130557 is an apocalyptic number.

It is an amenable number.

2130557 is a deficient number, since it is larger than the sum of its proper divisors (433795).

2130557 is a wasteful number, since it uses less digits than its factorization.

2130557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 2130557 is about 1459.6427645147. The cubic root of 2130557 is about 128.6760495304.

Adding to 2130557 its reverse (7550312), we get a palindrome (9680869).

The spelling of 2130557 in words is "two million, one hundred thirty thousand, five hundred fifty-seven".