1158377951 has 4 divisors (see below), whose sum is σ = 1163436600. Its totient is φ = 1153319304.

The previous prime is 1158377939. The next prime is 1158377971. The reversal of 1158377951 is 1597738511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1597738511 = 571 ⋅2798141.

It is a cyclic number.

It is not a de Polignac number, because 1158377951 - 2²² = 1154183647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1158377896 and 1158377905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158377971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2528981 + ... + 2529438.

It is an arithmetic number, because the mean of its divisors is an integer number (290859150).

Almost surely, 2^1158377951 is an apocalyptic number.

1158377951 is a deficient number, since it is larger than the sum of its proper divisors (5058649).

1158377951 is an equidigital number, since it uses as much as digits as its factorization.

1158377951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5058648.

The product of its digits is 264600, while the sum is 47.

The square root of 1158377951 is about 34034.9519024194. The cubic root of 1158377951 is about 1050.2276002456.

The spelling of 1158377951 in words is "one billion, one hundred fifty-eight million, three hundred seventy-seven thousand, nine hundred fifty-one".