1142507 has 2 divisors, whose sum is σ = 1142508. Its totient is φ = 1142506.

The previous prime is 1142503. The next prime is 1142509. The reversal of 1142507 is 7052411.

It is a strong prime.

It is an emirp because it is prime and its reverse (7052411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1142507 - 2² = 1142503 is a prime.

Together with 1142509, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1142503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571253 + 571254.

It is an arithmetic number, because the mean of its divisors is an integer number (571254).

2^1142507 is an apocalyptic number.

1142507 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142507 is an equidigital number, since it uses as much as digits as its factorization.

1142507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 1142507 is about 1068.8811907785. The cubic root of 1142507 is about 104.5409132930.

Adding to 1142507 its reverse (7052411), we get a palindrome (8194918).

The spelling of 1142507 in words is "one million, one hundred forty-two thousand, five hundred seven".