742186069 has 2 divisors, whose sum is σ = 742186070. Its totient is φ = 742186068.

The previous prime is 742186061. The next prime is 742186079. The reversal of 742186069 is 960681247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 569395044 + 172791025 = 23862^2 + 13145^2 .

It is a cyclic number.

It is not a de Polignac number, because 742186069 - 2³ = 742186061 is a prime.

It is a super-2 number, since 2×742186069² = 1101680322035345522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (742186061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371093034 + 371093035.

It is an arithmetic number, because the mean of its divisors is an integer number (371093035).

Almost surely, 2^742186069 is an apocalyptic number.

It is an amenable number.

742186069 is a deficient number, since it is larger than the sum of its proper divisors (1).

742186069 is an equidigital number, since it uses as much as digits as its factorization.

742186069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 742186069 is about 27243.0921336033. The cubic root of 742186069 is about 905.3939735375.

The spelling of 742186069 in words is "seven hundred forty-two million, one hundred eighty-six thousand, sixty-nine".