507140145 has 24 divisors (see below), whose sum is σ = 880664616. Its totient is φ = 269975808.

The previous prime is 507140143. The next prime is 507140189. The reversal of 507140145 is 541041705.

It is a happy number.

507140145 is a `hidden beast` number, since 507 + 14 + 0 + 145 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4124961 + 503015184 = 2031^2 + 22428^2 .

It is not a de Polignac number, because 507140145 - 2¹ = 507140143 is a prime.

It is a super-2 number, since 2×507140145² = 514382253341242050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (507140143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14949 + ... + 35181.

It is an arithmetic number, because the mean of its divisors is an integer number (36694359).

Almost surely, 2^507140145 is an apocalyptic number.

It is an amenable number.

507140145 is a deficient number, since it is larger than the sum of its proper divisors (373524471).

507140145 is a wasteful number, since it uses less digits than its factorization.

507140145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20801 (or 20798 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 507140145 is about 22519.7723123481. The cubic root of 507140145 is about 797.4607744651.

The spelling of 507140145 in words is "five hundred seven million, one hundred forty thousand, one hundred forty-five".