611150161 has 4 divisors (see below), whose sum is σ = 611445924. Its totient is φ = 610854400.

The previous prime is 611150159. The next prime is 611150167. The reversal of 611150161 is 161051116.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 266342400 + 344807761 = 16320^2 + 18569^2 .

It is a cyclic number.

It is not a de Polignac number, because 611150161 - 2¹ = 611150159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (611150167) 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, 144760 + ... + 148921.

It is an arithmetic number, because the mean of its divisors is an integer number (152861481).

Almost surely, 2^611150161 is an apocalyptic number.

It is an amenable number.

611150161 is a deficient number, since it is larger than the sum of its proper divisors (295763).

611150161 is a wasteful number, since it uses less digits than its factorization.

611150161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295762.

The product of its (nonzero) digits is 180, while the sum is 22.

The square root of 611150161 is about 24721.4514339268. The cubic root of 611150161 is about 848.6253031741.

It can be divided in two parts, 6 and 11150161, that multiplied together give a palindrome (66900966).

The spelling of 611150161 in words is "six hundred eleven million, one hundred fifty thousand, one hundred sixty-one".