1540013049 has 27 divisors (see below), whose sum is σ = 2264096133. Its totient is φ = 1008702072.

The previous prime is 1540013039. The next prime is 1540013053. The reversal of 1540013049 is 9403100451.

The square root of 1540013049 is 39243.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1540013049 - 2¹⁹ = 1539488761 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1540013039) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 12126024 + ... + 12126150.

Almost surely, 2^1540013049 is an apocalyptic number.

1540013049 is the 39243-rd square number.

1540013049 is the 19622-nd centered octagonal number.

It is an amenable number.

1540013049 is a deficient number, since it is larger than the sum of its proper divisors (724083084).

1540013049 is an equidigital number, since it uses as much as digits as its factorization.

1540013049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The cubic root of 1540013049 is about 1154.8036119684.

The spelling of 1540013049 in words is "one billion, five hundred forty million, thirteen thousand, forty-nine".