2145562 has 8 divisors (see below), whose sum is σ = 3239316. Its totient is φ = 1065792.

The previous prime is 2145551. The next prime is 2145617. The reversal of 2145562 is 2655412.

It can be written as a sum of positive squares in 2 ways, for example, as 1934881 + 210681 = 1391^2 + 459^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3103 + ... + 3730.

2^2145562 is an apocalyptic number.

2145562 is a deficient number, since it is larger than the sum of its proper divisors (1093754).

2145562 is a wasteful number, since it uses less digits than its factorization.

2145562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6992.

The product of its digits is 2400, while the sum is 25.

The square root of 2145562 is about 1464.7737026585. The cubic root of 2145562 is about 128.9774212832.

It can be divided in two parts, 214 and 5562, that added together give a square (5776 = 76²).

The spelling of 2145562 in words is "two million, one hundred forty-five thousand, five hundred sixty-two".