133143142 has 8 divisors (see below), whose sum is σ = 217870632. Its totient is φ = 60519600.

The previous prime is 133143121. The next prime is 133143163. The reversal of 133143142 is 241341331.

It is an interprime number because it is at equal distance from previous prime (133143121) and next prime (133143163).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 6051961 = 133143142 / (1 + 3 + 3 + 1 + 4 + 3 + 1 + 4 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3025959 + ... + 3026002.

It is an arithmetic number, because the mean of its divisors is an integer number (27233829).

Almost surely, 2^133143142 is an apocalyptic number.

133143142 is a deficient number, since it is larger than the sum of its proper divisors (84727490).

133143142 is a wasteful number, since it uses less digits than its factorization.

133143142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6051974.

The product of its digits is 864, while the sum is 22.

The square root of 133143142 is about 11538.7669185230. The cubic root of 133143142 is about 510.6299303183.

Adding to 133143142 its reverse (241341331), we get a palindrome (374484473).

The spelling of 133143142 in words is "one hundred thirty-three million, one hundred forty-three thousand, one hundred forty-two".