601506161 has 4 divisors (see below), whose sum is σ = 633164400. Its totient is φ = 569847924.

The previous prime is 601506149. The next prime is 601506167. The reversal of 601506161 is 161605106.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 601506161 - 2²² = 597311857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 601506161.

It is not an unprimeable number, because it can be changed into a prime (601506167) 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, 15829091 + ... + 15829128.

It is an arithmetic number, because the mean of its divisors is an integer number (158291100).

Almost surely, 2^601506161 is an apocalyptic number.

It is an amenable number.

601506161 is a deficient number, since it is larger than the sum of its proper divisors (31658239).

601506161 is a wasteful number, since it uses less digits than its factorization.

601506161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31658238.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 601506161 is about 24525.6225405187. The cubic root of 601506161 is about 844.1378230225.

The spelling of 601506161 in words is "six hundred one million, five hundred six thousand, one hundred sixty-one".