131540554 has 8 divisors (see below), whose sum is σ = 198344448. Its totient is φ = 65425740.

The previous prime is 131540551. The next prime is 131540573. The reversal of 131540554 is 455045131.

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

It is not an unprimeable number, because it can be changed into a prime (131540551) 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, 171792 + ... + 172555.

It is an arithmetic number, because the mean of its divisors is an integer number (24793056).

Almost surely, 2^131540554 is an apocalyptic number.

131540554 is a deficient number, since it is larger than the sum of its proper divisors (66803894).

131540554 is a wasteful number, since it uses less digits than its factorization.

131540554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344540.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 131540554 is about 11469.1130433003. The cubic root of 131540554 is about 508.5729090425.

Adding to 131540554 its reverse (455045131), we get a palindrome (586585685).

The spelling of 131540554 in words is "one hundred thirty-one million, five hundred forty thousand, five hundred fifty-four".