133722142 has 8 divisors (see below), whose sum is σ = 201159000. Its totient is φ = 66669144.

The previous prime is 133722137. The next prime is 133722223. The reversal of 133722142 is 241227331.

It is a happy number.

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

It is a super-2 number, since 2×133722142² = 35763222522136328, which contains 22 as substring.

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, 95092 + ... + 96487.

It is an arithmetic number, because the mean of its divisors is an integer number (25144875).

Almost surely, 2^133722142 is an apocalyptic number.

133722142 is a deficient number, since it is larger than the sum of its proper divisors (67436858).

133722142 is a wasteful number, since it uses less digits than its factorization.

133722142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191930.

The product of its digits is 2016, while the sum is 25.

The square root of 133722142 is about 11563.8290371313. The cubic root of 133722142 is about 511.3690526045.

Adding to 133722142 its reverse (241227331), we get a palindrome (374949473).

The spelling of 133722142 in words is "one hundred thirty-three million, seven hundred twenty-two thousand, one hundred forty-two".