133557150 has 48 divisors (see below), whose sum is σ = 335786544. Its totient is φ = 35124480.

The previous prime is 133557133. The next prime is 133557167. The reversal of 133557150 is 51755331.

It is an interprime number because it is at equal distance from previous prime (133557133) and next prime (133557167).

It is a super-2 number, since 2×133557150² = 35675024632245000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4852 + ... + 17048.

It is an arithmetic number, because the mean of its divisors is an integer number (6995553).

Almost surely, 2^133557150 is an apocalyptic number.

133557150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 133557150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167893272).

133557150 is an abundant number, since it is smaller than the sum of its proper divisors (202229394).

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

133557150 is a wasteful number, since it uses less digits than its factorization.

133557150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12285 (or 12280 counting only the distinct ones).

The product of its (nonzero) digits is 7875, while the sum is 30.

The square root of 133557150 is about 11556.6928660409. The cubic root of 133557150 is about 511.1586498351.

It can be divided in two parts, 1335 and 57150, that added together give a palindrome (58485).

The spelling of 133557150 in words is "one hundred thirty-three million, five hundred fifty-seven thousand, one hundred fifty".