133125662 has 4 divisors (see below), whose sum is σ = 199688496. Its totient is φ = 66562830.

The previous prime is 133125661. The next prime is 133125697. The reversal of 133125662 is 266521331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 266521331 = 347 ⋅768073.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133125661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33281414 + ... + 33281417.

It is an arithmetic number, because the mean of its divisors is an integer number (49922124).

Almost surely, 2^133125662 is an apocalyptic number.

133125662 is a deficient number, since it is larger than the sum of its proper divisors (66562834).

133125662 is an equidigital number, since it uses as much as digits as its factorization.

133125662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66562833.

The product of its digits is 6480, while the sum is 29.

The square root of 133125662 is about 11538.0094470407. The cubic root of 133125662 is about 510.6075829366.

Adding to 133125662 its reverse (266521331), we get a palindrome (399646993).

The spelling of 133125662 in words is "one hundred thirty-three million, one hundred twenty-five thousand, six hundred sixty-two".