1373149566 has 12 divisors (see below), whose sum is σ = 2975157432. Its totient is φ = 457716516.

The previous prime is 1373149553. The next prime is 1373149567. The reversal of 1373149566 is 6659413731.

It is a happy number.

1373149566 is a `hidden beast` number, since 1 + 3 + 73 + 14 + 9 + 566 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373149567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38143026 + ... + 38143061.

It is an arithmetic number, because the mean of its divisors is an integer number (247929786).

Almost surely, 2^1373149566 is an apocalyptic number.

1373149566 is an abundant number, since it is smaller than the sum of its proper divisors (1602007866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1373149566 is a wasteful number, since it uses less digits than its factorization.

1373149566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76286095 (or 76286092 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 1373149566 is about 37056.0327881979. The cubic root of 1373149566 is about 1111.4909936663.

The spelling of 1373149566 in words is "one billion, three hundred seventy-three million, one hundred forty-nine thousand, five hundred sixty-six".