133103142 has 32 divisors (see below), whose sum is σ = 296340960. Its totient is φ = 44284320.

The previous prime is 133103141. The next prime is 133103143. The reversal of 133103142 is 241301331.

It is an interprime number because it is at equal distance from previous prime (133103141) and next prime (133103143).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133103141) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 31092 + ... + 35112.

It is an arithmetic number, because the mean of its divisors is an integer number (9260655).

Almost surely, 2^133103142 is an apocalyptic number.

133103142 is an abundant number, since it is smaller than the sum of its proper divisors (163237818).

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

133103142 is a wasteful number, since it uses less digits than its factorization.

133103142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4645 (or 4639 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 133103142 is about 11537.0335008615. The cubic root of 133103142 is about 510.5787892614.

Adding to 133103142 its reverse (241301331), we get a palindrome (374404473).

The spelling of 133103142 in words is "one hundred thirty-three million, one hundred three thousand, one hundred forty-two".