1540261011 has 24 divisors (see below), whose sum is σ = 2178984720. Its totient is φ = 967624704.

The previous prime is 1540261001. The next prime is 1540261103. The reversal of 1540261011 is 1101620451.

1540261011 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1540261011 - 2¹⁴ = 1540244627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1540261001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 205335 + ... + 212703.

It is an arithmetic number, because the mean of its divisors is an integer number (90791030).

Almost surely, 2^1540261011 is an apocalyptic number.

1540261011 is a deficient number, since it is larger than the sum of its proper divisors (638723709).

1540261011 is a wasteful number, since it uses less digits than its factorization.

1540261011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7603 (or 7584 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 1540261011 is about 39246.1591878747. The cubic root of 1540261011 is about 1154.8655880766.

Adding to 1540261011 its reverse (1101620451), we get a palindrome (2641881462).

The spelling of 1540261011 in words is "one billion, five hundred forty million, two hundred sixty-one thousand, eleven".