1138714785 has 48 divisors (see below), whose sum is σ = 2194203648. Its totient is φ = 542505600.

The previous prime is 1138714763. The next prime is 1138714789. The reversal of 1138714785 is 5874178311.

1138714785 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1138714785 - 2⁶ = 1138714721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1138714785.

It is not an unprimeable number, because it can be changed into a prime (1138714789) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13261 + ... + 49530.

It is an arithmetic number, because the mean of its divisors is an integer number (45712576).

Almost surely, 2^1138714785 is an apocalyptic number.

1138714785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1138714785 is a deficient number, since it is larger than the sum of its proper divisors (1055488863).

1138714785 is a wasteful number, since it uses less digits than its factorization.

1138714785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62846 (or 62843 counting only the distinct ones).

The product of its digits is 188160, while the sum is 45.

The square root of 1138714785 is about 33744.8482734772. The cubic root of 1138714785 is about 1044.2512084309.

The spelling of 1138714785 in words is "one billion, one hundred thirty-eight million, seven hundred fourteen thousand, seven hundred eighty-five".