1157579 has 2 divisors, whose sum is σ = 1157580. Its totient is φ = 1157578.

The previous prime is 1157557. The next prime is 1157591. The reversal of 1157579 is 9757511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1157579 - 2¹² = 1153483 is a prime.

It is not a weakly prime, because it can be changed into another prime (1157539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578789 + 578790.

It is an arithmetic number, because the mean of its divisors is an integer number (578790).

2^1157579 is an apocalyptic number.

1157579 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157579 is an equidigital number, since it uses as much as digits as its factorization.

1157579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11025, while the sum is 35.

The square root of 1157579 is about 1075.9084533547. The cubic root of 1157579 is about 104.9986092030.

It can be divided in two parts, 1157 and 579, that multiplied together give a triangular number (669903 = T₁₁₅₇).

The spelling of 1157579 in words is "one million, one hundred fifty-seven thousand, five hundred seventy-nine".