509031149 has 12 divisors (see below), whose sum is σ = 560387520. Its totient is φ = 462033000.

The previous prime is 509031137. The next prime is 509031151. The reversal of 509031149 is 941130905.

It is a de Polignac number, because none of the positive numbers 2^k-509031149 is a prime.

It is a super-2 number, since 2×509031149² = 518225421304520402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509031169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84074 + ... + 89924.

It is an arithmetic number, because the mean of its divisors is an integer number (46698960).

Almost surely, 2^509031149 is an apocalyptic number.

It is an amenable number.

509031149 is a deficient number, since it is larger than the sum of its proper divisors (51356371).

509031149 is a wasteful number, since it uses less digits than its factorization.

509031149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6592 (or 6581 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 509031149 is about 22561.7186623714. The cubic root of 509031149 is about 798.4507250582.

The spelling of 509031149 in words is "five hundred nine million, thirty-one thousand, one hundred forty-nine".