1641367267 has 4 divisors (see below), whose sum is σ = 1656707256. Its totient is φ = 1626027280.

The previous prime is 1641367243. The next prime is 1641367283. The reversal of 1641367267 is 7627631461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7627631461 = 4987 ⋅1529503.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1641367267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1641367237) 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, 7669834 + ... + 7670047.

It is an arithmetic number, because the mean of its divisors is an integer number (414176814).

Almost surely, 2^1641367267 is an apocalyptic number.

1641367267 is a deficient number, since it is larger than the sum of its proper divisors (15339989).

1641367267 is a wasteful number, since it uses less digits than its factorization.

1641367267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15339988.

The product of its digits is 254016, while the sum is 43.

The square root of 1641367267 is about 40513.7910716832. The cubic root of 1641367267 is about 1179.6013368867.

The spelling of 1641367267 in words is "one billion, six hundred forty-one million, three hundred sixty-seven thousand, two hundred sixty-seven".