1157667 has 8 divisors (see below), whose sum is σ = 1764096. Its totient is φ = 661512.

The previous prime is 1157641. The next prime is 1157669. The reversal of 1157667 is 7667511.

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

It is not a de Polignac number, because 1157667 - 2⁷ = 1157539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1157669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27543 + ... + 27584.

It is an arithmetic number, because the mean of its divisors is an integer number (220512).

2^1157667 is an apocalyptic number.

1157667 is a deficient number, since it is larger than the sum of its proper divisors (606429).

1157667 is an equidigital number, since it uses as much as digits as its factorization.

1157667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55137.

The product of its digits is 8820, while the sum is 33.

The square root of 1157667 is about 1075.9493482502. The cubic root of 1157667 is about 105.0012698259.

The spelling of 1157667 in words is "one million, one hundred fifty-seven thousand, six hundred sixty-seven".