133631002 has 4 divisors (see below), whose sum is σ = 200446506. Its totient is φ = 66815500.

The previous prime is 133630997. The next prime is 133631023. The reversal of 133631002 is 200136331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200136331 = 107 ⋅1870433.

It can be written as a sum of positive squares in only one way, i.e., 67387681 + 66243321 = 8209^2 + 8139^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33407749 + ... + 33407752.

Almost surely, 2^133631002 is an apocalyptic number.

133631002 is a deficient number, since it is larger than the sum of its proper divisors (66815504).

133631002 is an equidigital number, since it uses as much as digits as its factorization.

133631002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66815503.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 133631002 is about 11559.8876292116. The cubic root of 133631002 is about 511.2528495407.

Adding to 133631002 its reverse (200136331), we get a palindrome (333767333).

It can be divided in two parts, 13363 and 1002, that added together give a triangular number (14365 = T₁₆₉).

The spelling of 133631002 in words is "one hundred thirty-three million, six hundred thirty-one thousand, two".