132991949 has 4 divisors (see below), whose sum is σ = 136586364. Its totient is φ = 129397536.

The previous prime is 132991927. The next prime is 132991967. The reversal of 132991949 is 949199231.

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

It can be written as a sum of positive squares in 2 ways, for example, as 125664100 + 7327849 = 11210^2 + 2707^2 .

It is a cyclic number.

It is not a de Polignac number, because 132991949 - 2⁸ = 132991693 is a prime.

It is a super-3 number, since 3×132991949³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132991919) 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, 1797152 + ... + 1797225.

It is an arithmetic number, because the mean of its divisors is an integer number (34146591).

Almost surely, 2^132991949 is an apocalyptic number.

It is an amenable number.

132991949 is a deficient number, since it is larger than the sum of its proper divisors (3594415).

132991949 is an equidigital number, since it uses as much as digits as its factorization.

132991949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3594414.

The product of its digits is 157464, while the sum is 47.

The square root of 132991949 is about 11532.2135342700. The cubic root of 132991949 is about 510.4365722235.

The spelling of 132991949 in words is "one hundred thirty-two million, nine hundred ninety-one thousand, nine hundred forty-nine".