131968450 has 48 divisors (see below), whose sum is σ = 262509984. Its totient is φ = 49184000.

The previous prime is 131968409. The next prime is 131968469. The reversal of 131968450 is 54869131.

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 23 ways as a sum of consecutive naturals, for example, 90225 + ... + 91675.

It is an arithmetic number, because the mean of its divisors is an integer number (5468958).

Almost surely, 2^131968450 is an apocalyptic number.

131968450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131968450 is a deficient number, since it is larger than the sum of its proper divisors (130541534).

131968450 is a wasteful number, since it uses less digits than its factorization.

131968450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587 (or 1582 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 131968450 is about 11487.7521735107. The cubic root of 131968450 is about 509.1237677365.

The spelling of 131968450 in words is "one hundred thirty-one million, nine hundred sixty-eight thousand, four hundred fifty".