1142667 has 10 divisors (see below), whose sum is σ = 1707068. Its totient is φ = 761724.

The previous prime is 1142651. The next prime is 1142677. The reversal of 1142667 is 7662411.

It is not a de Polignac number, because 1142667 - 2⁴ = 1142651 is a prime.

It is a super-3 number, since 3×1142667³ = 4475899333951364889, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1142667.

It is not an unprimeable number, because it can be changed into a prime (1142677) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6973 + ... + 7134.

2^1142667 is an apocalyptic number.

1142667 is a deficient number, since it is larger than the sum of its proper divisors (564401).

1142667 is an equidigital number, since it uses as much as digits as its factorization.

1142667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14119 (or 14110 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 1142667 is about 1068.9560327722. The cubic root of 1142667 is about 104.5457931363.

The spelling of 1142667 in words is "one million, one hundred forty-two thousand, six hundred sixty-seven".