131144450 has 12 divisors (see below), whose sum is σ = 243928770. Its totient is φ = 52457760.

The previous prime is 131144417. The next prime is 131144471. The reversal of 131144450 is 54441131.

It can be written as a sum of positive squares in 3 ways, for example, as 67256401 + 63888049 = 8201^2 + 7993^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1311395 + ... + 1311494.

Almost surely, 2^131144450 is an apocalyptic number.

131144450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131144450 is a deficient number, since it is larger than the sum of its proper divisors (112784320).

131144450 is a wasteful number, since it uses less digits than its factorization.

131144450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622901 (or 2622896 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 131144450 is about 11451.8317312123. The cubic root of 131144450 is about 508.0619124946.

Adding to 131144450 its reverse (54441131), we get a palindrome (185585581).

The spelling of 131144450 in words is "one hundred thirty-one million, one hundred forty-four thousand, four hundred fifty".