1540261012 has 12 divisors (see below), whose sum is σ = 2768307220. Its totient is φ = 749316096.

The previous prime is 1540261001. The next prime is 1540261103. The reversal of 1540261012 is 2101620451.

It can be written as a sum of positive squares in 2 ways, for example, as 642419716 + 897841296 = 25346^2 + 29964^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5203437 + ... + 5203732.

Almost surely, 2^1540261012 is an apocalyptic number.

It is an amenable number.

1540261012 is a deficient number, since it is larger than the sum of its proper divisors (1228046208).

1540261012 is a wasteful number, since it uses less digits than its factorization.

1540261012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10407210 (or 10407208 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1540261012 is about 39246.1592006148. The cubic root of 1540261012 is about 1154.8655883266.

Adding to 1540261012 its reverse (2101620451), we get a palindrome (3641881463).

The spelling of 1540261012 in words is "one billion, five hundred forty million, two hundred sixty-one thousand, twelve".