1158280087 has 8 divisors (see below), whose sum is σ = 1172815200. Its totient is φ = 1143778944.

The previous prime is 1158280061. The next prime is 1158280099. The reversal of 1158280087 is 7800828511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1158280087 - 2¹⁹ = 1157755799 is a prime.

It is a super-2 number, since 2×1158280087² = 2683225519881455138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158280037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63958 + ... + 80044.

It is an arithmetic number, because the mean of its divisors is an integer number (146601900).

Almost surely, 2^1158280087 is an apocalyptic number.

1158280087 is a deficient number, since it is larger than the sum of its proper divisors (14535113).

1158280087 is an equidigital number, since it uses as much as digits as its factorization.

1158280087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16985.

The product of its (nonzero) digits is 35840, while the sum is 40.

The square root of 1158280087 is about 34033.5141735319. The cubic root of 1158280087 is about 1050.1980237249.

The spelling of 1158280087 in words is "one billion, one hundred fifty-eight million, two hundred eighty thousand, eighty-seven".