1138992701 has 12 divisors (see below), whose sum is σ = 1445401440. Its totient is φ = 887526360.

The previous prime is 1138992641. The next prime is 1138992713. The reversal of 1138992701 is 1072998311.

It is a happy number.

It is not a de Polignac number, because 1138992701 - 2¹⁴ = 1138976317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138992761) 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 11 ways as a sum of consecutive naturals, for example, 1056041 + ... + 1057118.

It is an arithmetic number, because the mean of its divisors is an integer number (120450120).

Almost surely, 2^1138992701 is an apocalyptic number.

1138992701 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1138992701 is a deficient number, since it is larger than the sum of its proper divisors (306408739).

1138992701 is a wasteful number, since it uses less digits than its factorization.

1138992701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113184 (or 2113177 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 1138992701 is about 33748.9659248991. The cubic root of 1138992701 is about 1044.3361552253.

The spelling of 1138992701 in words is "one billion, one hundred thirty-eight million, nine hundred ninety-two thousand, seven hundred one".