1142541 has 6 divisors (see below), whose sum is σ = 1650350. Its totient is φ = 761688.

The previous prime is 1142539. The next prime is 1142549. The reversal of 1142541 is 1452411.

It can be written as a sum of positive squares in only one way, i.e., 756900 + 385641 = 870^2 + 621^2 .

It is not a de Polignac number, because 1142541 - 2¹ = 1142539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63466 + ... + 63483.

2^1142541 is an apocalyptic number.

It is an amenable number.

1142541 is a deficient number, since it is larger than the sum of its proper divisors (507809).

1142541 is a wasteful number, since it uses less digits than its factorization.

1142541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126955 (or 126952 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 1142541 is about 1068.8970951406. The cubic root of 1142541 is about 104.5419502978.

Adding to 1142541 its reverse (1452411), we get a palindrome (2594952).

The spelling of 1142541 in words is "one million, one hundred forty-two thousand, five hundred forty-one".