158786077 has 8 divisors (see below), whose sum is σ = 160510680. Its totient is φ = 157066560.

The previous prime is 158786029. The next prime is 158786087. The reversal of 158786077 is 770687851.

It can be written as a sum of positive squares in 4 ways, for example, as 99480676 + 59305401 = 9974^2 + 7701^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158786077 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 158786077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158786027) 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, 114963 + ... + 116335.

It is an arithmetic number, because the mean of its divisors is an integer number (20063835).

Almost surely, 2^158786077 is an apocalyptic number.

It is an amenable number.

158786077 is a deficient number, since it is larger than the sum of its proper divisors (1724603).

158786077 is a wasteful number, since it uses less digits than its factorization.

158786077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543.

The product of its (nonzero) digits is 658560, while the sum is 49.

The square root of 158786077 is about 12601.0347590982. The cubic root of 158786077 is about 541.5070805718.

The spelling of 158786077 in words is "one hundred fifty-eight million, seven hundred eighty-six thousand, seventy-seven".