2701561 has 4 divisors (see below), whose sum is σ = 2764432. Its totient is φ = 2638692.

The previous prime is 2701529. The next prime is 2701571. The reversal of 2701561 is 1651072.

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 2701561 - 2⁵ = 2701529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2701571) 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, 31371 + ... + 31456.

It is an arithmetic number, because the mean of its divisors is an integer number (691108).

2^2701561 is an apocalyptic number.

It is an amenable number.

2701561 is a deficient number, since it is larger than the sum of its proper divisors (62871).

2701561 is an equidigital number, since it uses as much as digits as its factorization.

2701561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62870.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 2701561 is about 1643.6426010541. The cubic root of 2701561 is about 139.2744950983.

The spelling of 2701561 in words is "two million, seven hundred one thousand, five hundred sixty-one".