1190639 has 2 divisors, whose sum is σ = 1190640. Its totient is φ = 1190638.

The previous prime is 1190633. The next prime is 1190647. The reversal of 1190639 is 9360911.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1190639 is a prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1190633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 595319 + 595320.

It is an arithmetic number, because the mean of its divisors is an integer number (595320).

2^1190639 is an apocalyptic number.

1190639 is a deficient number, since it is larger than the sum of its proper divisors (1).

1190639 is an equidigital number, since it uses as much as digits as its factorization.

1190639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 1190639 is about 1091.1640573259. The cubic root of 1190639 is about 105.9888145311.

The spelling of 1190639 in words is "one million, one hundred ninety thousand, six hundred thirty-nine".