1145916938 has 8 divisors (see below), whose sum is σ = 1729824132. Its totient is φ = 569308896.

The previous prime is 1145916931. The next prime is 1145916983. The reversal of 1145916938 is 8396195411.

It can be written as a sum of positive squares in 2 ways, for example, as 1141561369 + 4355569 = 33787^2 + 2087^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1145916892 and 1145916901.

It is not an unprimeable number, because it can be changed into a prime (1145916931) 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, 1824395 + ... + 1825022.

Almost surely, 2^1145916938 is an apocalyptic number.

1145916938 is a deficient number, since it is larger than the sum of its proper divisors (583907194).

1145916938 is a wasteful number, since it uses less digits than its factorization.

1145916938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3649576.

The product of its digits is 233280, while the sum is 47.

The square root of 1145916938 is about 33851.3949195598. The cubic root of 1145916938 is about 1046.4481461715.

The spelling of 1145916938 in words is "one billion, one hundred forty-five million, nine hundred sixteen thousand, nine hundred thirty-eight".