134631226523 has 4 divisors (see below), whose sum is σ = 139273682640. Its totient is φ = 129988770408.

The previous prime is 134631226451. The next prime is 134631226531. The reversal of 134631226523 is 325622136431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325622136431 = 947 ⋅343845973.

It is a cyclic number.

It is not a de Polignac number, because 134631226523 - 2¹⁴ = 134631210139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134631226423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2321228015 + ... + 2321228072.

It is an arithmetic number, because the mean of its divisors is an integer number (34818420660).

Almost surely, 2^134631226523 is an apocalyptic number.

134631226523 is a deficient number, since it is larger than the sum of its proper divisors (4642456117).

134631226523 is an equidigital number, since it uses as much as digits as its factorization.

134631226523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4642456116.

The product of its digits is 155520, while the sum is 38.

The spelling of 134631226523 in words is "one hundred thirty-four billion, six hundred thirty-one million, two hundred twenty-six thousand, five hundred twenty-three".