2156301 has 20 divisors (see below), whose sum is σ = 3682272. Its totient is φ = 1231848.

The previous prime is 2156299. The next prime is 2156303. The reversal of 2156301 is 1036512.

It is an interprime number because it is at equal distance from previous prime (2156299) and next prime (2156303).

It is not a de Polignac number, because 2156301 - 2¹ = 2156299 is a prime.

2156301 is a lucky number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156303) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1335 + ... + 2468.

2^2156301 is an apocalyptic number.

2156301 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2156301 is a deficient number, since it is larger than the sum of its proper divisors (1525971).

2156301 is an equidigital number, since it uses as much as digits as its factorization.

2156301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3822 (or 3813 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 2156301 is about 1468.4348810894. The cubic root of 2156301 is about 129.1922498522.

The spelling of 2156301 in words is "two million, one hundred fifty-six thousand, three hundred one".