742263169 has 2 divisors, whose sum is σ = 742263170. Its totient is φ = 742263168.

The previous prime is 742263143. The next prime is 742263191. The reversal of 742263169 is 961362247.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 523814769 + 218448400 = 22887^2 + 14780^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-742263169 is a prime.

It is a super-2 number, since 2×742263169² = 1101909224107845122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (742263869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371131584 + 371131585.

It is an arithmetic number, because the mean of its divisors is an integer number (371131585).

Almost surely, 2^742263169 is an apocalyptic number.

It is an amenable number.

742263169 is a deficient number, since it is larger than the sum of its proper divisors (1).

742263169 is an equidigital number, since it uses as much as digits as its factorization.

742263169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 40.

The square root of 742263169 is about 27244.5071344666. The cubic root of 742263169 is about 905.4253239231.

The spelling of 742263169 in words is "seven hundred forty-two million, two hundred sixty-three thousand, one hundred sixty-nine".