1173413538 has 48 divisors (see below), whose sum is σ = 2776134816. Its totient is φ = 355245120.

The previous prime is 1173413537. The next prime is 1173413539. The reversal of 1173413538 is 8353143711.

1173413538 is a `hidden beast` number, since 11 + 73 + 41 + 3 + 538 = 666.

1173413538 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1173413537) and next prime (1173413539).

It is not an unprimeable number, because it can be changed into a prime (1173413531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 280470 + ... + 284622.

It is an arithmetic number, because the mean of its divisors is an integer number (57836142).

Almost surely, 2^1173413538 is an apocalyptic number.

1173413538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1173413538 is an abundant number, since it is smaller than the sum of its proper divisors (1602721278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1173413538 is a wasteful number, since it uses less digits than its factorization.

1173413538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5599 (or 5596 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 1173413538 is about 34255.1242590069. The cubic root of 1173413538 is about 1054.7520176644.

The spelling of 1173413538 in words is "one billion, one hundred seventy-three million, four hundred thirteen thousand, five hundred thirty-eight".