1306536542 has 8 divisors (see below), whose sum is σ = 1960014456. Its totient is φ = 653198392.

The previous prime is 1306536541. The next prime is 1306536557. The reversal of 1306536542 is 2456356031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306536541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7148 + ... + 51615.

It is an arithmetic number, because the mean of its divisors is an integer number (245001807).

Almost surely, 2^1306536542 is an apocalyptic number.

1306536542 is a deficient number, since it is larger than the sum of its proper divisors (653477914).

1306536542 is a wasteful number, since it uses less digits than its factorization.

1306536542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69882.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 1306536542 is about 36146.0446245506. The cubic root of 1306536542 is about 1093.2190399769.

The spelling of 1306536542 in words is "one billion, three hundred six million, five hundred thirty-six thousand, five hundred forty-two".