134124781 has 32 divisors (see below), whose sum is σ = 172488960. Its totient is φ = 101523456.

The previous prime is 134124779. The next prime is 134124803. The reversal of 134124781 is 187421431.

It is not a de Polignac number, because 134124781 - 2¹ = 134124779 is a prime.

It is a super-2 number, since 2×134124781² = 35978913756595922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134124701) 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 31 ways as a sum of consecutive naturals, for example, 309541 + ... + 309973.

It is an arithmetic number, because the mean of its divisors is an integer number (5390280).

Almost surely, 2^134124781 is an apocalyptic number.

It is an amenable number.

134124781 is a deficient number, since it is larger than the sum of its proper divisors (38364179).

134124781 is a wasteful number, since it uses less digits than its factorization.

134124781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613.

The product of its digits is 5376, while the sum is 31.

The square root of 134124781 is about 11581.2253669463. The cubic root of 134124781 is about 511.8817844851.

The spelling of 134124781 in words is "one hundred thirty-four million, one hundred twenty-four thousand, seven hundred eighty-one".