131951448 has 48 divisors (see below), whose sum is σ = 366093000. Its totient is φ = 42910080.

The previous prime is 131951431. The next prime is 131951459. The reversal of 131951448 is 844159131.

131951448 is a `hidden beast` number, since 131 + 9 + 514 + 4 + 8 = 666.

It is a super-2 number, since 2×131951448² = 34822369258593408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 19398 + ... + 25301.

Almost surely, 2^131951448 is an apocalyptic number.

131951448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

131951448 is an abundant number, since it is smaller than the sum of its proper divisors (234141552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131951448 is a wasteful number, since it uses less digits than its factorization.

131951448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44752 (or 44745 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 131951448 is about 11487.0121441565. The cubic root of 131951448 is about 509.1019026769.

The spelling of 131951448 in words is "one hundred thirty-one million, nine hundred fifty-one thousand, four hundred forty-eight".