2142977 has 4 divisors (see below), whose sum is σ = 2168880. Its totient is φ = 2117076.

The previous prime is 2142971. The next prime is 2143019. The reversal of 2142977 is 7792412.

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 2142977 - 2¹⁸ = 1880833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2142971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12827 + ... + 12992.

It is an arithmetic number, because the mean of its divisors is an integer number (542220).

2^2142977 is an apocalyptic number.

It is an amenable number.

2142977 is a deficient number, since it is larger than the sum of its proper divisors (25903).

2142977 is an equidigital number, since it uses as much as digits as its factorization.

2142977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25902.

The product of its digits is 7056, while the sum is 32.

The square root of 2142977 is about 1463.8910478584. The cubic root of 2142977 is about 128.9256025955.

The spelling of 2142977 in words is "two million, one hundred forty-two thousand, nine hundred seventy-seven".