1157347977 has 8 divisors (see below), whose sum is σ = 1543508064. Its totient is φ = 771376608.

The previous prime is 1157347943. The next prime is 1157347987. The reversal of 1157347977 is 7797437511.

It is a happy number.

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

It is not a de Polignac number, because 1157347977 - 2¹⁸ = 1157085833 is a prime.

It is a super-3 number, since 3×1157347977³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1157347907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32188 + ... + 57885.

It is an arithmetic number, because the mean of its divisors is an integer number (192938508).

Almost surely, 2^1157347977 is an apocalyptic number.

It is an amenable number.

1157347977 is a deficient number, since it is larger than the sum of its proper divisors (386160087).

1157347977 is an equidigital number, since it uses as much as digits as its factorization.

1157347977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94359.

The product of its digits is 1296540, while the sum is 51.

The square root of 1157347977 is about 34019.8174157358. The cubic root of 1157347977 is about 1049.9162373090.

The spelling of 1157347977 in words is "one billion, one hundred fifty-seven million, three hundred forty-seven thousand, nine hundred seventy-seven".