531346145 has 16 divisors (see below), whose sum is σ = 699613632. Its totient is φ = 384192960.

The previous prime is 531346111. The next prime is 531346157. The reversal of 531346145 is 541643135.

531346145 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 531346145 - 2¹⁰ = 531345121 is a prime.

It is a super-2 number, since 2×531346145² = 564657451612722050, which contains 22 as substring.

It is a Duffinian 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, 18407 + ... + 37436.

It is an arithmetic number, because the mean of its divisors is an integer number (43725852).

Almost surely, 2^531346145 is an apocalyptic number.

531346145 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

531346145 is a deficient number, since it is larger than the sum of its proper divisors (168267487).

531346145 is a wasteful number, since it uses less digits than its factorization.

531346145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56032.

The product of its digits is 21600, while the sum is 32.

The square root of 531346145 is about 23050.9467267616. The cubic root of 531346145 is about 809.9518057999.

The spelling of 531346145 in words is "five hundred thirty-one million, three hundred forty-six thousand, one hundred forty-five".