1158720077 has 8 divisors (see below), whose sum is σ = 1201328640. Its totient is φ = 1116438480.

The previous prime is 1158720067. The next prime is 1158720127. The reversal of 1158720077 is 7700278511.

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 1158720077 - 2⁴ = 1158720061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1158720077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158720007) 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, 74513 + ... + 88710.

It is an arithmetic number, because the mean of its divisors is an integer number (150166080).

Almost surely, 2^1158720077 is an apocalyptic number.

It is an amenable number.

1158720077 is a deficient number, since it is larger than the sum of its proper divisors (42608563).

1158720077 is a wasteful number, since it uses less digits than its factorization.

1158720077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163483.

The product of its (nonzero) digits is 27440, while the sum is 38.

The square root of 1158720077 is about 34039.9776292523. The cubic root of 1158720077 is about 1050.3309846949.

Adding to 1158720077 its reverse (7700278511), we get a palindrome (8858998588).

The spelling of 1158720077 in words is "one billion, one hundred fifty-eight million, seven hundred twenty thousand, seventy-seven".