1540694612 has 12 divisors (see below), whose sum is σ = 2741914560. Its totient is φ = 757290456.

The previous prime is 1540694609. The next prime is 1540694621. The reversal of 1540694612 is 2164960451.

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, 3263948 + ... + 3264419.

It is an arithmetic number, because the mean of its divisors is an integer number (228492880).

Almost surely, 2^1540694612 is an apocalyptic number.

It is an amenable number.

1540694612 is a deficient number, since it is larger than the sum of its proper divisors (1201219948).

1540694612 is a wasteful number, since it uses less digits than its factorization.

1540694612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6528430 (or 6528428 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1540694612 is about 39251.6829193348. The cubic root of 1540694612 is about 1154.9739471769.

The spelling of 1540694612 in words is "one billion, five hundred forty million, six hundred ninety-four thousand, six hundred twelve".