561602157 has 8 divisors (see below), whose sum is σ = 792850176. Its totient is φ = 352377792.

The previous prime is 561602149. The next prime is 561602159. The reversal of 561602157 is 751206165.

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

It is not a de Polignac number, because 561602157 - 2³ = 561602149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561602159) 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 7 ways as a sum of consecutive naturals, for example, 5505853 + ... + 5505954.

It is an arithmetic number, because the mean of its divisors is an integer number (99106272).

Almost surely, 2^561602157 is an apocalyptic number.

It is an amenable number.

561602157 is a deficient number, since it is larger than the sum of its proper divisors (231248019).

561602157 is a wasteful number, since it uses less digits than its factorization.

561602157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11011827.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 561602157 is about 23698.1466996894. The cubic root of 561602157 is about 825.0423765193.

The spelling of 561602157 in words is "five hundred sixty-one million, six hundred two thousand, one hundred fifty-seven".