1142691 has 16 divisors (see below), whose sum is σ = 1717248. Its totient is φ = 669600.

The previous prime is 1142677. The next prime is 1142693. The reversal of 1142691 is 1962411.

It is not a de Polignac number, because 1142691 - 2¹⁰ = 1141667 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 465 + ... + 1581.

It is an arithmetic number, because the mean of its divisors is an integer number (107328).

2^1142691 is an apocalyptic number.

1142691 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1142691 is a deficient number, since it is larger than the sum of its proper divisors (574557).

1142691 is a wasteful number, since it uses less digits than its factorization.

1142691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162.

The product of its digits is 432, while the sum is 24.

The square root of 1142691 is about 1068.9672586193. The cubic root of 1142691 is about 104.5465250735.

The spelling of 1142691 in words is "one million, one hundred forty-two thousand, six hundred ninety-one".