134621642731 has 8 divisors (see below), whose sum is σ = 135019748880. Its totient is φ = 134223631872.

The previous prime is 134621642713. The next prime is 134621642791. The reversal of 134621642731 is 137246126431.

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 134621642731 - 2¹¹ = 134621640683 is a prime.

It is a super-2 number, since 2×134621642731² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134621642791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3622000 + ... + 3658978.

It is an arithmetic number, because the mean of its divisors is an integer number (16877468610).

Almost surely, 2^134621642731 is an apocalyptic number.

134621642731 is a deficient number, since it is larger than the sum of its proper divisors (398106149).

134621642731 is a wasteful number, since it uses less digits than its factorization.

134621642731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47645.

The product of its digits is 145152, while the sum is 40.

The spelling of 134621642731 in words is "one hundred thirty-four billion, six hundred twenty-one million, six hundred forty-two thousand, seven hundred thirty-one".