155311465 has 16 divisors (see below), whose sum is σ = 191150928. Its totient is φ = 121095936.

The previous prime is 155311447. The next prime is 155311469. The reversal of 155311465 is 564113551.

It is a happy number.

155311465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 234256 + 155077209 = 484^2 + 12453^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155311465 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155311469) 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, 39739 + ... + 43471.

It is an arithmetic number, because the mean of its divisors is an integer number (11946933).

Almost surely, 2^155311465 is an apocalyptic number.

It is an amenable number.

155311465 is a deficient number, since it is larger than the sum of its proper divisors (35839463).

155311465 is a wasteful number, since it uses less digits than its factorization.

155311465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3948.

The product of its digits is 9000, while the sum is 31.

The square root of 155311465 is about 12462.4020557836. The cubic root of 155311465 is about 537.5280994865.

The spelling of 155311465 in words is "one hundred fifty-five million, three hundred eleven thousand, four hundred sixty-five".