131545454 has 8 divisors (see below), whose sum is σ = 197601768. Its totient is φ = 65678200.

The previous prime is 131545409. The next prime is 131545459. The reversal of 131545454 is 454545131.

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

It is a super-2 number, since 2×131545454² = 34608412936132232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131545454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131545459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45512 + ... + 48315.

It is an arithmetic number, because the mean of its divisors is an integer number (24700221).

Almost surely, 2^131545454 is an apocalyptic number.

131545454 is a deficient number, since it is larger than the sum of its proper divisors (66056314).

131545454 is an equidigital number, since it uses as much as digits as its factorization.

131545454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94530.

The product of its digits is 24000, while the sum is 32.

The square root of 131545454 is about 11469.3266585271. The cubic root of 131545454 is about 508.5792238917.

The spelling of 131545454 in words is "one hundred thirty-one million, five hundred forty-five thousand, four hundred fifty-four".