1342781633 has 2 divisors, whose sum is σ = 1342781634. Its totient is φ = 1342781632.

The previous prime is 1342781591. The next prime is 1342781641. The reversal of 1342781633 is 3361872431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1080568384 + 262213249 = 32872^2 + 16193^2 .

It is a cyclic number.

It is not a de Polignac number, because 1342781633 - 2¹⁶ = 1342716097 is a prime.

It is not a weakly prime, because it can be changed into another prime (1342781663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671390816 + 671390817.

It is an arithmetic number, because the mean of its divisors is an integer number (671390817).

Almost surely, 2^1342781633 is an apocalyptic number.

It is an amenable number.

1342781633 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342781633 is an equidigital number, since it uses as much as digits as its factorization.

1342781633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 38.

The square root of 1342781633 is about 36643.9849497841. The cubic root of 1342781633 is about 1103.2360992819.

The spelling of 1342781633 in words is "one billion, three hundred forty-two million, seven hundred eighty-one thousand, six hundred thirty-three".