1375730613 has 6 divisors (see below), whose sum is σ = 1987166454. Its totient is φ = 917153736.

The previous prime is 1375730611. The next prime is 1375730639. The reversal of 1375730613 is 3160375731.

It is a happy number.

1375730613 is a `hidden beast` number, since 1 + 3 + 7 + 5 + 7 + 30 + 613 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1240659729 + 135070884 = 35223^2 + 11622^2 .

It is not a de Polignac number, because 1375730613 - 2¹ = 1375730611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375730611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76429470 + ... + 76429487.

It is an arithmetic number, because the mean of its divisors is an integer number (331194409).

Almost surely, 2^1375730613 is an apocalyptic number.

It is an amenable number.

1375730613 is a deficient number, since it is larger than the sum of its proper divisors (611435841).

1375730613 is a wasteful number, since it uses less digits than its factorization.

1375730613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152858963 (or 152858960 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 36.

The square root of 1375730613 is about 37090.8427108363. The cubic root of 1375730613 is about 1112.1869642006.

The spelling of 1375730613 in words is "one billion, three hundred seventy-five million, seven hundred thirty thousand, six hundred thirteen".