133542270 has 80 divisors (see below), whose sum is σ = 362506320. Its totient is φ = 35271936.

The previous prime is 133542263. The next prime is 133542307. The reversal of 133542270 is 72245331.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 90801 + ... + 92259.

It is an arithmetic number, because the mean of its divisors is an integer number (4531329).

Almost surely, 2^133542270 is an apocalyptic number.

133542270 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 133542270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181253160).

133542270 is an abundant number, since it is smaller than the sum of its proper divisors (228964050).

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

133542270 is a wasteful number, since it uses less digits than its factorization.

133542270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591 (or 1582 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 133542270 is about 11556.0490653164. The cubic root of 133542270 is about 511.1396658940.

The spelling of 133542270 in words is "one hundred thirty-three million, five hundred forty-two thousand, two hundred seventy".