1260431167 has 4 divisors (see below), whose sum is σ = 1261055016. Its totient is φ = 1259807320.

The previous prime is 1260431141. The next prime is 1260431171. The reversal of 1260431167 is 7611340621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1260431167 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260431467) 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, 308884 + ... + 312937.

It is an arithmetic number, because the mean of its divisors is an integer number (315263754).

Almost surely, 2^1260431167 is an apocalyptic number.

1260431167 is a deficient number, since it is larger than the sum of its proper divisors (623849).

1260431167 is an equidigital number, since it uses as much as digits as its factorization.

1260431167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623848.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1260431167 is about 35502.5515561910. The cubic root of 1260431167 is about 1080.2054841639.

Adding to 1260431167 its reverse (7611340621), we get a palindrome (8871771788).

The spelling of 1260431167 in words is "one billion, two hundred sixty million, four hundred thirty-one thousand, one hundred sixty-seven".