131554645 has 8 divisors (see below), whose sum is σ = 161224704. Its totient is φ = 103004304.

The previous prime is 131554627. The next prime is 131554649. The reversal of 131554645 is 546455131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131554645 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131554645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131554649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279669 + ... + 280138.

It is an arithmetic number, because the mean of its divisors is an integer number (20153088).

Almost surely, 2^131554645 is an apocalyptic number.

It is an amenable number.

131554645 is a deficient number, since it is larger than the sum of its proper divisors (29670059).

131554645 is an equidigital number, since it uses as much as digits as its factorization.

131554645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559859.

The product of its digits is 36000, while the sum is 34.

The square root of 131554645 is about 11469.7273289298. The cubic root of 131554645 is about 508.5910683218.

The spelling of 131554645 in words is "one hundred thirty-one million, five hundred fifty-four thousand, six hundred forty-five".