1158747545 has 4 divisors (see below), whose sum is σ = 1390497060. Its totient is φ = 926998032.

The previous prime is 1158747503. The next prime is 1158747553. The reversal of 1158747545 is 5457478511.

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

It can be written as a sum of positive squares in 2 ways, for example, as 588111001 + 570636544 = 24251^2 + 23888^2 .

It is a cyclic number.

It is not a de Polignac number, because 1158747545 - 2¹² = 1158743449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1158747545.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115874750 + ... + 115874759.

It is an arithmetic number, because the mean of its divisors is an integer number (347624265).

Almost surely, 2^1158747545 is an apocalyptic number.

It is an amenable number.

1158747545 is a deficient number, since it is larger than the sum of its proper divisors (231749515).

1158747545 is an equidigital number, since it uses as much as digits as its factorization.

1158747545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231749514.

The product of its digits is 784000, while the sum is 47.

The square root of 1158747545 is about 34040.3810936364. The cubic root of 1158747545 is about 1050.3392841580.

The spelling of 1158747545 in words is "one billion, one hundred fifty-eight million, seven hundred forty-seven thousand, five hundred forty-five".