1380001158 has 32 divisors (see below), whose sum is σ = 3080448000. Its totient is φ = 457933608.

The previous prime is 1380001111. The next prime is 1380001253. The reversal of 1380001158 is 8511000831.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45258 + ... + 69341.

It is an arithmetic number, because the mean of its divisors is an integer number (96264000).

Almost surely, 2^1380001158 is an apocalyptic number.

1380001158 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1380001158 is an abundant number, since it is smaller than the sum of its proper divisors (1700446842).

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

1380001158 is a wasteful number, since it uses less digits than its factorization.

1380001158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114833 (or 114827 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 1380001158 is about 37148.3668281662. The cubic root of 1380001158 is about 1113.3365929323.

Adding to 1380001158 its reverse (8511000831), we get a palindrome (9891001989).

The spelling of 1380001158 in words is "one billion, three hundred eighty million, one thousand, one hundred fifty-eight".