1158061787 has 2 divisors, whose sum is σ = 1158061788. Its totient is φ = 1158061786.

The previous prime is 1158061783. The next prime is 1158061813. The reversal of 1158061787 is 7871608511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1158061787 - 2² = 1158061783 is a prime.

It is a super-2 number, since 2×1158061787² = 2682214205019266738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1158061781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 579030893 + 579030894.

It is an arithmetic number, because the mean of its divisors is an integer number (579030894).

Almost surely, 2^1158061787 is an apocalyptic number.

1158061787 is a deficient number, since it is larger than the sum of its proper divisors (1).

1158061787 is an equidigital number, since it uses as much as digits as its factorization.

1158061787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 44.

The square root of 1158061787 is about 34030.3068895948. The cubic root of 1158061787 is about 1050.1320429558.

The spelling of 1158061787 in words is "one billion, one hundred fifty-eight million, sixty-one thousand, seven hundred eighty-seven".