1167631213 has 32 divisors (see below), whose sum is σ = 1464680448. Its totient is φ = 907718400.

The previous prime is 1167631211. The next prime is 1167631249. The reversal of 1167631213 is 3121367611.

It is not a de Polignac number, because 1167631213 - 2¹ = 1167631211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1167631211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1132008 + ... + 1133038.

It is an arithmetic number, because the mean of its divisors is an integer number (45771264).

Almost surely, 2^1167631213 is an apocalyptic number.

It is an amenable number.

1167631213 is a deficient number, since it is larger than the sum of its proper divisors (297049235).

1167631213 is a wasteful number, since it uses less digits than its factorization.

1167631213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393.

The product of its digits is 4536, while the sum is 31.

The square root of 1167631213 is about 34170.6191486195. The cubic root of 1167631213 is about 1053.0166350038.

Adding to 1167631213 its reverse (3121367611), we get a palindrome (4288998824).

The spelling of 1167631213 in words is "one billion, one hundred sixty-seven million, six hundred thirty-one thousand, two hundred thirteen".