1143607 has 4 divisors (see below), whose sum is σ = 1210896. Its totient is φ = 1076320.

The previous prime is 1143601. The next prime is 1143619. The reversal of 1143607 is 7063411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1143607 - 2¹⁵ = 1110839 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 (1143601) 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, 33619 + ... + 33652.

It is an arithmetic number, because the mean of its divisors is an integer number (302724).

2^1143607 is an apocalyptic number.

1143607 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1143607 is a deficient number, since it is larger than the sum of its proper divisors (67289).

1143607 is an equidigital number, since it uses as much as digits as its factorization.

1143607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67288.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 1143607 is about 1069.3956237053. The cubic root of 1143607 is about 104.5744530201.

It can be divided in two parts, 114 and 3607, that added together give a square (3721 = 61²).

The spelling of 1143607 in words is "one million, one hundred forty-three thousand, six hundred seven".