133262139 has 4 divisors (see below), whose sum is σ = 177682856. Its totient is φ = 88841424.

The previous prime is 133262137. The next prime is 133262147. The reversal of 133262139 is 931262331.

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

It is not a de Polignac number, because 133262139 - 2¹ = 133262137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133262131) 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, 22210354 + ... + 22210359.

It is an arithmetic number, because the mean of its divisors is an integer number (44420714).

Almost surely, 2^133262139 is an apocalyptic number.

133262139 is a deficient number, since it is larger than the sum of its proper divisors (44420717).

133262139 is an equidigital number, since it uses as much as digits as its factorization.

133262139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44420716.

The product of its digits is 5832, while the sum is 30.

The square root of 133262139 is about 11543.9221670973. The cubic root of 133262139 is about 510.7820105917.

The spelling of 133262139 in words is "one hundred thirty-three million, two hundred sixty-two thousand, one hundred thirty-nine".