1534165641 has 12 divisors (see below), whose sum is σ = 2217270900. Its totient is φ = 1022198400.

The previous prime is 1534165639. The next prime is 1534165651. The reversal of 1534165641 is 1465614351.

1534165641 is a `hidden beast` number, since 1 + 5 + 3 + 4 + 1 + 6 + 5 + 641 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 948332025 + 585833616 = 30795^2 + 24204^2 .

It is not a de Polignac number, because 1534165641 - 2¹ = 1534165639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1534165596 and 1534165605.

It is not an unprimeable number, because it can be changed into a prime (1534165601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31116 + ... + 63533.

It is an arithmetic number, because the mean of its divisors is an integer number (184772575).

Almost surely, 2^1534165641 is an apocalyptic number.

It is an amenable number.

1534165641 is a deficient number, since it is larger than the sum of its proper divisors (683105259).

1534165641 is a wasteful number, since it uses less digits than its factorization.

1534165641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96456 (or 96453 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 1534165641 is about 39168.4265831550. The cubic root of 1534165641 is about 1153.3401671236.

Adding to 1534165641 its reverse (1465614351), we get a palindrome (2999779992).

The spelling of 1534165641 in words is "one billion, five hundred thirty-four million, one hundred sixty-five thousand, six hundred forty-one".