2801345 has 8 divisors (see below), whose sum is σ = 3559464. Its totient is φ = 2109184.

The previous prime is 2801339. The next prime is 2801347. The reversal of 2801345 is 5431082.

2801345 = 1183² + 1184².

It can be written as a sum of positive squares in 4 ways, for example, as 1399489 + 1401856 = 1183^2 + 1184^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2801345 - 2¹⁰ = 2800321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2801345.

It is not an unprimeable number, because it can be changed into a prime (2801347) 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, 16394 + ... + 16563.

It is an arithmetic number, because the mean of its divisors is an integer number (444933).

2^2801345 is an apocalyptic number.

2801345 is the 1184-th centered square number.

It is an amenable number.

2801345 is a deficient number, since it is larger than the sum of its proper divisors (758119).

2801345 is a wasteful number, since it uses less digits than its factorization.

2801345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32979.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2801345 is about 1673.7219004363. The cubic root of 2801345 is about 140.9685391639.

The spelling of 2801345 in words is "two million, eight hundred one thousand, three hundred forty-five".