2144951 has 2 divisors, whose sum is σ = 2144952. Its totient is φ = 2144950.

The previous prime is 2144899. The next prime is 2144953. The reversal of 2144951 is 1594412.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2144951 is a prime.

Together with 2144953, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2144951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2144953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072475 + 1072476.

It is an arithmetic number, because the mean of its divisors is an integer number (1072476).

2^2144951 is an apocalyptic number.

2144951 is a deficient number, since it is larger than the sum of its proper divisors (1).

2144951 is an equidigital number, since it uses as much as digits as its factorization.

2144951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 26.

The square root of 2144951 is about 1464.5651231680. The cubic root of 2144951 is about 128.9651769876.

The spelling of 2144951 in words is "two million, one hundred forty-four thousand, nine hundred fifty-one".