132251531 has 4 divisors (see below), whose sum is σ = 135327192. Its totient is φ = 129175872.

The previous prime is 132251519. The next prime is 132251573. The reversal of 132251531 is 135152231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135152231 = 37 ⋅3652763.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132251531 is a prime.

It is a super-2 number, since 2×132251531² = 34980934903687922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 132251497 and 132251506.

It is not an unprimeable number, because it can be changed into a prime (132253531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1537766 + ... + 1537851.

It is an arithmetic number, because the mean of its divisors is an integer number (33831798).

Almost surely, 2^132251531 is an apocalyptic number.

132251531 is a deficient number, since it is larger than the sum of its proper divisors (3075661).

132251531 is an equidigital number, since it uses as much as digits as its factorization.

132251531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3075660.

The product of its digits is 900, while the sum is 23.

The square root of 132251531 is about 11500.0665650247. The cubic root of 132251531 is about 509.4875424029.

The spelling of 132251531 in words is "one hundred thirty-two million, two hundred fifty-one thousand, five hundred thirty-one".