1138801807 has 16 divisors (see below), whose sum is σ = 1350185760. Its totient is φ = 946857600.

The previous prime is 1138801801. The next prime is 1138801813. The reversal of 1138801807 is 7081088311.

It is an interprime number because it is at equal distance from previous prime (1138801801) and next prime (1138801813).

It is not a de Polignac number, because 1138801807 - 2¹⁹ = 1138277519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138801801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20944 + ... + 52117.

It is an arithmetic number, because the mean of its divisors is an integer number (84386610).

Almost surely, 2^1138801807 is an apocalyptic number.

1138801807 is a deficient number, since it is larger than the sum of its proper divisors (211383953).

1138801807 is a wasteful number, since it uses less digits than its factorization.

1138801807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73194.

The product of its (nonzero) digits is 10752, while the sum is 37.

The square root of 1138801807 is about 33746.1376604790. The cubic root of 1138801807 is about 1044.2778087453.

The spelling of 1138801807 in words is "one billion, one hundred thirty-eight million, eight hundred one thousand, eight hundred seven".