131004530 has 16 divisors (see below), whose sum is σ = 236231424. Its totient is φ = 52307760.

The previous prime is 131004509. The next prime is 131004539. The reversal of 131004530 is 35400131.

It is a junction number, because it is equal to n+sod(n) for n = 131004499 and 131004508.

It is not an unprimeable number, because it can be changed into a prime (131004539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5762 + ... + 17181.

It is an arithmetic number, because the mean of its divisors is an integer number (14764464).

Almost surely, 2^131004530 is an apocalyptic number.

131004530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131004530 is a deficient number, since it is larger than the sum of its proper divisors (105226894).

131004530 is a wasteful number, since it uses less digits than its factorization.

131004530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23521.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 131004530 is about 11445.7210345177. The cubic root of 131004530 is about 507.8811618810.

Adding to 131004530 its reverse (35400131), we get a palindrome (166404661).

The spelling of 131004530 in words is "one hundred thirty-one million, four thousand, five hundred thirty".