656154541 has 16 divisors (see below), whose sum is σ = 769120000. Its totient is φ = 559533744.

The previous prime is 656154533. The next prime is 656154581. The reversal of 656154541 is 145451656.

It is not a de Polignac number, because 656154541 - 2³ = 656154533 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 656154541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656154581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63451 + ... + 73063.

It is an arithmetic number, because the mean of its divisors is an integer number (48070000).

Almost surely, 2^656154541 is an apocalyptic number.

It is an amenable number.

656154541 is a deficient number, since it is larger than the sum of its proper divisors (112965459).

656154541 is an equidigital number, since it uses as much as digits as its factorization.

656154541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9833 (or 9819 counting only the distinct ones).

The product of its digits is 72000, while the sum is 37.

The square root of 656154541 is about 25615.5136782380. The cubic root of 656154541 is about 868.9645235559.

The spelling of 656154541 in words is "six hundred fifty-six million, one hundred fifty-four thousand, five hundred forty-one".