2280157 has 4 divisors (see below), whose sum is σ = 2487456. Its totient is φ = 2072860.

The previous prime is 2280127. The next prime is 2280163. The reversal of 2280157 is 7510822.

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 a cyclic number.

It is not a de Polignac number, because 2280157 - 2⁷ = 2280029 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 (2280107) 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, 103633 + ... + 103654.

It is an arithmetic number, because the mean of its divisors is an integer number (621864).

2^2280157 is an apocalyptic number.

It is an amenable number.

2280157 is a deficient number, since it is larger than the sum of its proper divisors (207299).

2280157 is a wasteful number, since it uses less digits than its factorization.

2280157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207298.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 2280157 is about 1510.0188740542. The cubic root of 2280157 is about 131.6199082664.

Adding to 2280157 its reverse (7510822), we get a palindrome (9790979).

The spelling of 2280157 in words is "two million, two hundred eighty thousand, one hundred fifty-seven".