742196261 has 2 divisors, whose sum is σ = 742196262. Its totient is φ = 742196260.

The previous prime is 742196243. The next prime is 742196303. The reversal of 742196261 is 162691247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 446012161 + 296184100 = 21119^2 + 17210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-742196261 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (742196201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371098130 + 371098131.

It is an arithmetic number, because the mean of its divisors is an integer number (371098131).

Almost surely, 2^742196261 is an apocalyptic number.

It is an amenable number.

742196261 is a deficient number, since it is larger than the sum of its proper divisors (1).

742196261 is an equidigital number, since it uses as much as digits as its factorization.

742196261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 38.

The square root of 742196261 is about 27243.2791895543. The cubic root of 742196261 is about 905.3981179309.

The spelling of 742196261 in words is "seven hundred forty-two million, one hundred ninety-six thousand, two hundred sixty-one".