977231158 has 8 divisors (see below), whose sum is σ = 1499936328. Its totient is φ = 477252384.

The previous prime is 977231137. The next prime is 977231159. The reversal of 977231158 is 851132779.

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

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977231159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5681491 + ... + 5681662.

It is an arithmetic number, because the mean of its divisors is an integer number (187492041).

Almost surely, 2^977231158 is an apocalyptic number.

977231158 is a deficient number, since it is larger than the sum of its proper divisors (522705170).

977231158 is a wasteful number, since it uses less digits than its factorization.

977231158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11363198.

The product of its digits is 105840, while the sum is 43.

The square root of 977231158 is about 31260.6966972907. The cubic root of 977231158 is about 992.3520438800.

The spelling of 977231158 in words is "nine hundred seventy-seven million, two hundred thirty-one thousand, one hundred fifty-eight".