2157514 has 4 divisors (see below), whose sum is σ = 3236274. Its totient is φ = 1078756.

The previous prime is 2157511. The next prime is 2157517. The reversal of 2157514 is 4157512.

2157514 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2157511) and next prime (2157517).

It can be written as a sum of positive squares in only one way, i.e., 1836025 + 321489 = 1355^2 + 567^2 .

It is not an unprimeable number, because it can be changed into a prime (2157511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539377 + ... + 539380.

2^2157514 is an apocalyptic number.

2157514 is a deficient number, since it is larger than the sum of its proper divisors (1078760).

2157514 is a wasteful number, since it uses less digits than its factorization.

2157514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078759.

The product of its digits is 1400, while the sum is 25.

The square root of 2157514 is about 1468.8478478045. The cubic root of 2157514 is about 129.2164704694.

The spelling of 2157514 in words is "two million, one hundred fifty-seven thousand, five hundred fourteen".