2142467 has 4 divisors (see below), whose sum is σ = 2178840. Its totient is φ = 2106096.

The previous prime is 2142463. The next prime is 2142499. The reversal of 2142467 is 7642412.

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

It is a cyclic number.

It is not a de Polignac number, because 2142467 - 2² = 2142463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2142463) 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, 18098 + ... + 18215.

It is an arithmetic number, because the mean of its divisors is an integer number (544710).

2^2142467 is an apocalyptic number.

2142467 is a deficient number, since it is larger than the sum of its proper divisors (36373).

2142467 is an equidigital number, since it uses as much as digits as its factorization.

2142467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36372.

The product of its digits is 2688, while the sum is 26.

The square root of 2142467 is about 1463.7168442018. The cubic root of 2142467 is about 128.9153742583.

Adding to 2142467 its reverse (7642412), we get a palindrome (9784879).

Subtracting 2142467 from its reverse (7642412), we obtain a palindrome (5499945).

The spelling of 2142467 in words is "two million, one hundred forty-two thousand, four hundred sixty-seven".