1158925849 has 9 divisors (see below), whose sum is σ = 1180948287. Its totient is φ = 1137308544.

The previous prime is 1158925847. The next prime is 1158925897. The reversal of 1158925849 is 9485298511.

It is a happy number.

The square root of 1158925849 is 34043.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1150905625 + 8020224 = 33925^2 + 2832^2 .

It is not a de Polignac number, because 1158925849 - 2¹ = 1158925847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1158925796 and 1158925805.

It is not an unprimeable number, because it can be changed into a prime (1158925841) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2008249 + ... + 2008825.

Almost surely, 2^1158925849 is an apocalyptic number.

1158925849 is the 34043-rd square number.

1158925849 is the 17022-nd centered octagonal number.

It is an amenable number.

1158925849 is a deficient number, since it is larger than the sum of its proper divisors (22022438).

1158925849 is an frugal number, since it uses more digits than its factorization.

1158925849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272 (or 636 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 52.

The cubic root of 1158925849 is about 1050.3931555675.

The spelling of 1158925849 in words is "one billion, one hundred fifty-eight million, nine hundred twenty-five thousand, eight hundred forty-nine".