1301667 has 4 divisors (see below), whose sum is σ = 1735560. Its totient is φ = 867776.

The previous prime is 1301621. The next prime is 1301669. The reversal of 1301667 is 7661031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1301667 - 2⁶ = 1301603 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1301669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216942 + ... + 216947.

It is an arithmetic number, because the mean of its divisors is an integer number (433890).

2^1301667 is an apocalyptic number.

1301667 is a deficient number, since it is larger than the sum of its proper divisors (433893).

1301667 is an equidigital number, since it uses as much as digits as its factorization.

1301667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433892.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 1301667 is about 1140.9062187577. The cubic root of 1301667 is about 109.1859184300.

Adding to 1301667 its sum of digits (24), we get a triangular number (1301691 = T₁₆₁₃).

Adding to 1301667 its reverse (7661031), we get a palindrome (8962698).

The spelling of 1301667 in words is "one million, three hundred one thousand, six hundred sixty-seven".