131464021 has 32 divisors (see below), whose sum is σ = 158135040. Its totient is φ = 108117504.

The previous prime is 131464013. The next prime is 131464027. The reversal of 131464021 is 120464131.

It is a cyclic number.

It is not a de Polignac number, because 131464021 - 2³ = 131464013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131463983 and 131464001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131464027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 414555 + ... + 414871.

It is an arithmetic number, because the mean of its divisors is an integer number (4941720).

Almost surely, 2^131464021 is an apocalyptic number.

It is an amenable number.

131464021 is a deficient number, since it is larger than the sum of its proper divisors (26671019).

131464021 is a wasteful number, since it uses less digits than its factorization.

131464021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 131464021 is about 11465.7760749109. The cubic root of 131464021 is about 508.4742571810.

The spelling of 131464021 in words is "one hundred thirty-one million, four hundred sixty-four thousand, twenty-one".