1158483961 has 4 divisors (see below), whose sum is σ = 1159600000. Its totient is φ = 1157367924.

The previous prime is 1158483943. The next prime is 1158483983. The reversal of 1158483961 is 1693848511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1693848511 = 32803 ⋅51637.

It is a cyclic number.

It is not a de Polignac number, because 1158483961 - 2⁹ = 1158483449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1158483661) 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, 556461 + ... + 558538.

It is an arithmetic number, because the mean of its divisors is an integer number (289900000).

Almost surely, 2^1158483961 is an apocalyptic number.

It is an amenable number.

1158483961 is a deficient number, since it is larger than the sum of its proper divisors (1116039).

1158483961 is a wasteful number, since it uses less digits than its factorization.

1158483961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116038.

The product of its digits is 207360, while the sum is 46.

The square root of 1158483961 is about 34036.5092364067. The cubic root of 1158483961 is about 1050.2596367761.

The spelling of 1158483961 in words is "one billion, one hundred fifty-eight million, four hundred eighty-three thousand, nine hundred sixty-one".