134150781 has 8 divisors (see below), whose sum is σ = 185035680. Its totient is φ = 86349872.

The previous prime is 134150747. The next prime is 134150801. The reversal of 134150781 is 187051431.

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

It is a cyclic number.

It is not a de Polignac number, because 134150781 - 2⁶ = 134150717 is a prime.

It is a super-2 number, since 2×134150781² = 35992864085819922, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134150741) 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, 770895 + ... + 771068.

It is an arithmetic number, because the mean of its divisors is an integer number (23129460).

Almost surely, 2^134150781 is an apocalyptic number.

It is an amenable number.

134150781 is a deficient number, since it is larger than the sum of its proper divisors (50884899).

134150781 is a wasteful number, since it uses less digits than its factorization.

134150781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541995.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 134150781 is about 11582.3478189873. The cubic root of 134150781 is about 511.9148583298.

The spelling of 134150781 in words is "one hundred thirty-four million, one hundred fifty thousand, seven hundred eighty-one".