20131458 has 8 divisors (see below), whose sum is σ = 40262928. Its totient is φ = 6710484.

The previous prime is 20131427. The next prime is 20131487. The reversal of 20131458 is 85413102.

It is a sphenic number, since it is the product of 3 distinct primes.

20131458 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1677616 + ... + 1677627.

It is an arithmetic number, because the mean of its divisors is an integer number (5032866).

Almost surely, 2^20131458 is an apocalyptic number.

20131458 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20131458 is a wasteful number, since it uses less digits than its factorization.

20131458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3355248.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 20131458 is about 4486.8093340368. The cubic root of 20131458 is about 272.0351832372.

The spelling of 20131458 in words is "twenty million, one hundred thirty-one thousand, four hundred fifty-eight".