1742262661 has 2 divisors, whose sum is σ = 1742262662. Its totient is φ = 1742262660.

The previous prime is 1742262653. The next prime is 1742262679. The reversal of 1742262661 is 1662622471.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1082081025 + 660181636 = 32895^2 + 25694^2 .

It is an emirp because it is prime and its reverse (1662622471) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1742262661 - 2³ = 1742262653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1742262661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1742262601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 871131330 + 871131331.

It is an arithmetic number, because the mean of its divisors is an integer number (871131331).

Almost surely, 2^1742262661 is an apocalyptic number.

It is an amenable number.

1742262661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1742262661 is an equidigital number, since it uses as much as digits as its factorization.

1742262661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 37.

The square root of 1742262661 is about 41740.4199906997. The cubic root of 1742262661 is about 1203.2924998400.

The spelling of 1742262661 in words is "one billion, seven hundred forty-two million, two hundred sixty-two thousand, six hundred sixty-one".