1157671 has 2 divisors, whose sum is σ = 1157672. Its totient is φ = 1157670.

The previous prime is 1157669. The next prime is 1157699. The reversal of 1157671 is 1767511.

It is an a-pointer prime, because the next prime (1157699) can be obtained adding 1157671 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1157671 - 2¹ = 1157669 is a prime.

Together with 1157669, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1157621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578835 + 578836.

It is an arithmetic number, because the mean of its divisors is an integer number (578836).

2^1157671 is an apocalyptic number.

1157671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157671 is an equidigital number, since it uses as much as digits as its factorization.

1157671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1470, while the sum is 28.

The square root of 1157671 is about 1075.9512070721. The cubic root of 1157671 is about 105.0013907601.

The spelling of 1157671 in words is "one million, one hundred fifty-seven thousand, six hundred seventy-one".