1142537 has 4 divisors (see below), whose sum is σ = 1246416. Its totient is φ = 1038660.

The previous prime is 1142509. The next prime is 1142539. The reversal of 1142537 is 7352411.

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 1142537 - 2⁶ = 1142473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51923 + ... + 51944.

It is an arithmetic number, because the mean of its divisors is an integer number (311604).

2^1142537 is an apocalyptic number.

It is an amenable number.

1142537 is a deficient number, since it is larger than the sum of its proper divisors (103879).

1142537 is a wasteful number, since it uses less digits than its factorization.

1142537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103878.

The product of its digits is 840, while the sum is 23.

The square root of 1142537 is about 1068.8952240515. The cubic root of 1142537 is about 104.5418282983.

Adding to 1142537 its reverse (7352411), we get a palindrome (8494948).

The spelling of 1142537 in words is "one million, one hundred forty-two thousand, five hundred thirty-seven".