151611565 has 16 divisors (see below), whose sum is σ = 215095680. Its totient is φ = 100376640.

The previous prime is 151611547. The next prime is 151611569. The reversal of 151611565 is 565116151.

It is not a de Polignac number, because 151611565 - 2¹⁵ = 151578797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151611569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73671 + ... + 75700.

It is an arithmetic number, because the mean of its divisors is an integer number (13443480).

Almost surely, 2^151611565 is an apocalyptic number.

It is an amenable number.

151611565 is a deficient number, since it is larger than the sum of its proper divisors (63484115).

151611565 is a wasteful number, since it uses less digits than its factorization.

151611565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149412.

The product of its digits is 4500, while the sum is 31.

The square root of 151611565 is about 12313.0648093803. The cubic root of 151611565 is about 533.2253364227.

The spelling of 151611565 in words is "one hundred fifty-one million, six hundred eleven thousand, five hundred sixty-five".