1150945139 has 4 divisors (see below), whose sum is σ = 1200986256. Its totient is φ = 1100904024.

The previous prime is 1150945109. The next prime is 1150945141. The reversal of 1150945139 is 9315490511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1150945139 - 2¹⁶ = 1150879603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1150945109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25020524 + ... + 25020569.

It is an arithmetic number, because the mean of its divisors is an integer number (300246564).

Almost surely, 2^1150945139 is an apocalyptic number.

1150945139 is a deficient number, since it is larger than the sum of its proper divisors (50041117).

1150945139 is an equidigital number, since it uses as much as digits as its factorization.

1150945139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50041116.

The product of its (nonzero) digits is 24300, while the sum is 38.

The square root of 1150945139 is about 33925.5823678828. The cubic root of 1150945139 is about 1047.9764926234.

The spelling of 1150945139 in words is "one billion, one hundred fifty million, nine hundred forty-five thousand, one hundred thirty-nine".