2135730 has 16 divisors (see below), whose sum is σ = 5125824. Its totient is φ = 569520.

The previous prime is 2135729. The next prime is 2135737. The reversal of 2135730 is 375312.

It is a happy number.

It is a super-2 number, since 2×2135730² = 9122685265800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2135697 and 2135706.

It is not an unprimeable number, because it can be changed into a prime (2135737) 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, 35566 + ... + 35625.

It is an arithmetic number, because the mean of its divisors is an integer number (320364).

2^2135730 is an apocalyptic number.

2135730 is an abundant number, since it is smaller than the sum of its proper divisors (2990094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2135730 is a wasteful number, since it uses less digits than its factorization.

2135730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71201.

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

The square root of 2135730 is about 1461.4136991283. The cubic root of 2135730 is about 128.7801073274.

The spelling of 2135730 in words is "two million, one hundred thirty-five thousand, seven hundred thirty".