1190261 has 2 divisors, whose sum is σ = 1190262. Its totient is φ = 1190260.

The previous prime is 1190249. The next prime is 1190263. The reversal of 1190261 is 1620911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 792100 + 398161 = 890^2 + 631^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1190261 is a prime.

Together with 1190263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1190263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 595130 + 595131.

It is an arithmetic number, because the mean of its divisors is an integer number (595131).

2^1190261 is an apocalyptic number.

It is an amenable number.

1190261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1190261 is an equidigital number, since it uses as much as digits as its factorization.

1190261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 1190261 is about 1090.9908340587. The cubic root of 1190261 is about 105.9775970217.

Adding to 1190261 its sum of digits (20), we get a square (1190281 = 1091²).

The spelling of 1190261 in words is "one million, one hundred ninety thousand, two hundred sixty-one".