1157669 has 2 divisors, whose sum is σ = 1157670. Its totient is φ = 1157668.

The previous prime is 1157641. The next prime is 1157671. The reversal of 1157669 is 9667511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1144900 + 12769 = 1070^2 + 113^2 .

It is a cyclic number.

It is not a de Polignac number, because 1157669 - 2⁸ = 1157413 is a prime.

It is a super-2 number, since 2×1157669² = 2680395027122, which contains 22 as substring.

Together with 1157671, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1157609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578834 + 578835.

It is an arithmetic number, because the mean of its divisors is an integer number (578835).

2^1157669 is an apocalyptic number.

It is an amenable number.

1157669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157669 is an equidigital number, since it uses as much as digits as its factorization.

1157669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 35.

The square root of 1157669 is about 1075.9502776616. The cubic root of 1157669 is about 105.0013302930.

The spelling of 1157669 in words is "one million, one hundred fifty-seven thousand, six hundred sixty-nine".