1139548474874 has 4 divisors (see below), whose sum is σ = 1709322712314. Its totient is φ = 569774237436.

The previous prime is 1139548474853. The next prime is 1139548474891. The reversal of 1139548474874 is 4784748459311.

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

It can be written as a sum of positive squares in only one way, i.e., 712179024649 + 427369450225 = 843907^2 + 653735^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1139548474874.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284887118717 + ... + 284887118720.

Almost surely, 2^{1139548474874} is an apocalyptic number.

1139548474874 is a deficient number, since it is larger than the sum of its proper divisors (569774237440).

1139548474874 is an equidigital number, since it uses as much as digits as its factorization.

1139548474874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569774237439.

The product of its digits is 108380160, while the sum is 65.

The spelling of 1139548474874 in words is "one trillion, one hundred thirty-nine billion, five hundred forty-eight million, four hundred seventy-four thousand, eight hundred seventy-four".