132226781 has 8 divisors (see below), whose sum is σ = 133119744. Its totient is φ = 131337360.

The previous prime is 132226777. The next prime is 132226859. The reversal of 132226781 is 187622231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 132226781 - 2² = 132226777 is a prime.

It is a super-2 number, since 2×132226781² = 34967843227243922, which contains 22 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 (132226771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127736 + ... + 128766.

It is an arithmetic number, because the mean of its divisors is an integer number (16639968).

Almost surely, 2^132226781 is an apocalyptic number.

It is an amenable number.

132226781 is a deficient number, since it is larger than the sum of its proper divisors (892963).

132226781 is a wasteful number, since it uses less digits than its factorization.

132226781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771.

The product of its digits is 8064, while the sum is 32.

The square root of 132226781 is about 11498.9904339468. The cubic root of 132226781 is about 509.4557580113.

The spelling of 132226781 in words is "one hundred thirty-two million, two hundred twenty-six thousand, seven hundred eighty-one".