131146550 has 48 divisors (see below), whose sum is σ = 259031040. Its totient is φ = 49260960.

The previous prime is 131146513. The next prime is 131146553. The reversal of 131146550 is 55641131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131146553) 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, 120107 + ... + 121193.

It is an arithmetic number, because the mean of its divisors is an integer number (5396480).

Almost surely, 2^131146550 is an apocalyptic number.

131146550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131146550 is a deficient number, since it is larger than the sum of its proper divisors (127884490).

131146550 is a wasteful number, since it uses less digits than its factorization.

131146550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245 (or 1240 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 131146550 is about 11451.9234192340. The cubic root of 131146550 is about 508.0646243245.

Adding to 131146550 its reverse (55641131), we get a palindrome (186787681).

The spelling of 131146550 in words is "one hundred thirty-one million, one hundred forty-six thousand, five hundred fifty".