1352412661 has 2 divisors, whose sum is σ = 1352412662. Its totient is φ = 1352412660.

The previous prime is 1352412643. The next prime is 1352412667. The reversal of 1352412661 is 1662142531.

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., 1345495761 + 6916900 = 36681^2 + 2630^2 .

It is a cyclic number.

It is not a de Polignac number, because 1352412661 - 2²¹ = 1350315509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1352412667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 676206330 + 676206331.

It is an arithmetic number, because the mean of its divisors is an integer number (676206331).

Almost surely, 2^1352412661 is an apocalyptic number.

It is an amenable number.

1352412661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1352412661 is an equidigital number, since it uses as much as digits as its factorization.

1352412661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 31.

The square root of 1352412661 is about 36775.1636434156. The cubic root of 1352412661 is about 1105.8674517723.

The spelling of 1352412661 in words is "one billion, three hundred fifty-two million, four hundred twelve thousand, six hundred sixty-one".