132263991 has 24 divisors (see below), whose sum is σ = 199429776. Its totient is φ = 84389760.

The previous prime is 132263981. The next prime is 132263993. The reversal of 132263991 is 199362231.

It is a happy number.

132263991 is a `hidden beast` number, since 13 + 2 + 2 + 639 + 9 + 1 = 666.

It is not a de Polignac number, because 132263991 - 2¹⁰ = 132262967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132263993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16176 + ... + 22938.

It is an arithmetic number, because the mean of its divisors is an integer number (8309574).

Almost surely, 2^132263991 is an apocalyptic number.

132263991 is a deficient number, since it is larger than the sum of its proper divisors (67165785).

132263991 is a wasteful number, since it uses less digits than its factorization.

132263991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6863 (or 6860 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 132263991 is about 11500.6082882602. The cubic root of 132263991 is about 509.5035422566.

The spelling of 132263991 in words is "one hundred thirty-two million, two hundred sixty-three thousand, nine hundred ninety-one".