2130357 has 4 divisors (see below), whose sum is σ = 2840480. Its totient is φ = 1420236.

The previous prime is 2130347. The next prime is 2130367. The reversal of 2130357 is 7530312.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2130347) and next prime (2130367).

It is not a de Polignac number, because 2130357 - 2⁴ = 2130341 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 1 + 3 + 0 + 3¹¹ + 5⁹ + 7² .

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355057 + ... + 355062.

It is an arithmetic number, because the mean of its divisors is an integer number (710120).

2^2130357 is an apocalyptic number.

It is an amenable number.

2130357 is a deficient number, since it is larger than the sum of its proper divisors (710123).

2130357 is an equidigital number, since it uses as much as digits as its factorization.

2130357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710122.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 2130357 is about 1459.5742529930. The cubic root of 2130357 is about 128.6720230379.

Adding to 2130357 its reverse (7530312), we get a palindrome (9660669).

The spelling of 2130357 in words is "two million, one hundred thirty thousand, three hundred fifty-seven".