531023145045 has 16 divisors (see below), whose sum is σ = 857885937792. Its totient is φ = 280462708800.

The previous prime is 531023145031. The next prime is 531023145073. The reversal of 531023145045 is 540541320135.

It is not a de Polignac number, because 531023145045 - 2⁷ = 531023144917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 531023144997 and 531023145015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171850606 + ... + 171853695.

It is an arithmetic number, because the mean of its divisors is an integer number (53617871112).

Almost surely, 2^531023145045 is an apocalyptic number.

It is an amenable number.

531023145045 is a deficient number, since it is larger than the sum of its proper divisors (326862792747).

531023145045 is a wasteful number, since it uses less digits than its factorization.

531023145045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343704412.

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 531023145045 in words is "five hundred thirty-one billion, twenty-three million, one hundred forty-five thousand, forty-five".