1167220523 has 6 divisors (see below), whose sum is σ = 1357787196. Its totient is φ = 1000474692.

The previous prime is 1167220519. The next prime is 1167220529. The reversal of 1167220523 is 3250227611.

It is a happy number.

It is not a de Polignac number, because 1167220523 - 2² = 1167220519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1167220529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11910365 + ... + 11910462.

It is an arithmetic number, because the mean of its divisors is an integer number (226297866).

Almost surely, 2^1167220523 is an apocalyptic number.

1167220523 is a deficient number, since it is larger than the sum of its proper divisors (190566673).

1167220523 is an equidigital number, since it uses as much as digits as its factorization.

1167220523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23820841 (or 23820834 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 1167220523 is about 34164.6092177270. The cubic root of 1167220523 is about 1052.8931616245.

The spelling of 1167220523 in words is "one billion, one hundred sixty-seven million, two hundred twenty thousand, five hundred twenty-three".