1138552955 has 8 divisors (see below), whose sum is σ = 1375434000. Its totient is φ = 904728736.

The previous prime is 1138552939. The next prime is 1138553023. The reversal of 1138552955 is 5592558311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1138552955 - 2⁴ = 1138552939 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 763385 + ... + 764874.

It is an arithmetic number, because the mean of its divisors is an integer number (171929250).

Almost surely, 2^1138552955 is an apocalyptic number.

1138552955 is a deficient number, since it is larger than the sum of its proper divisors (236881045).

1138552955 is a wasteful number, since it uses less digits than its factorization.

1138552955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528413.

The product of its digits is 270000, while the sum is 44.

The square root of 1138552955 is about 33742.4503407799. The cubic root of 1138552955 is about 1044.2017376939.

The spelling of 1138552955 in words is "one billion, one hundred thirty-eight million, five hundred fifty-two thousand, nine hundred fifty-five".