1355416693 has 2 divisors, whose sum is σ = 1355416694. Its totient is φ = 1355416692.

The previous prime is 1355416679. The next prime is 1355416709. The reversal of 1355416693 is 3966145531.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1351444644 + 3972049 = 36762^2 + 1993^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1355416693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1355416603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677708346 + 677708347.

It is an arithmetic number, because the mean of its divisors is an integer number (677708347).

Almost surely, 2^1355416693 is an apocalyptic number.

It is an amenable number.

1355416693 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355416693 is an equidigital number, since it uses as much as digits as its factorization.

1355416693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 291600, while the sum is 43.

The square root of 1355416693 is about 36815.9842052335. The cubic root of 1355416693 is about 1106.6856449766.

The spelling of 1355416693 in words is "one billion, three hundred fifty-five million, four hundred sixteen thousand, six hundred ninety-three".