133912152 has 144 divisors (see below), whose sum is σ = 420147000. Its totient is φ = 38396160.

The previous prime is 133912151. The next prime is 133912153. The reversal of 133912152 is 251219331.

It is an interprime number because it is at equal distance from previous prime (133912151) and next prime (133912153).

It is a super-2 number, since 2×133912152² = 35864928906542208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133912151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 165124 + ... + 165932.

Almost surely, 2^133912152 is an apocalyptic number.

133912152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133912152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210073500).

133912152 is an abundant number, since it is smaller than the sum of its proper divisors (286234848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133912152 is a wasteful number, since it uses less digits than its factorization.

133912152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862 (or 844 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 133912152 is about 11572.0418250195. The cubic root of 133912152 is about 511.6111447687.

The spelling of 133912152 in words is "one hundred thirty-three million, nine hundred twelve thousand, one hundred fifty-two".