523135331545 has 32 divisors (see below), whose sum is σ = 656352668160. Its totient is φ = 399521041920.

The previous prime is 523135331539. The next prime is 523135331561. The reversal of 523135331545 is 545133531325.

It is not a de Polignac number, because 523135331545 - 2⁵ = 523135331513 is a prime.

It is a super-2 number, since 2×523135331545² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 523135331498 and 523135331507.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 219711255 + ... + 219713635.

It is an arithmetic number, because the mean of its divisors is an integer number (20511020880).

Almost surely, 2^523135331545 is an apocalyptic number.

It is an amenable number.

523135331545 is a deficient number, since it is larger than the sum of its proper divisors (133217336615).

523135331545 is a wasteful number, since it uses less digits than its factorization.

523135331545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5385.

The product of its digits is 405000, while the sum is 40.

The spelling of 523135331545 in words is "five hundred twenty-three billion, one hundred thirty-five million, three hundred thirty-one thousand, five hundred forty-five".