133942951 has 8 divisors (see below), whose sum is σ = 142363520. Its totient is φ = 125659512.

The previous prime is 133942937. The next prime is 133942957. The reversal of 133942951 is 159249331.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133942951 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133942951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133942957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32265 + ... + 36178.

It is an arithmetic number, because the mean of its divisors is an integer number (17795440).

Almost surely, 2^133942951 is an apocalyptic number.

133942951 is a deficient number, since it is larger than the sum of its proper divisors (8420569).

133942951 is a wasteful number, since it uses less digits than its factorization.

133942951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68565.

The product of its digits is 29160, while the sum is 37.

The square root of 133942951 is about 11573.3724989737. The cubic root of 133942951 is about 511.6503642708.

The spelling of 133942951 in words is "one hundred thirty-three million, nine hundred forty-two thousand, nine hundred fifty-one".