1305996542 has 8 divisors (see below), whose sum is σ = 2074229856. Its totient is φ = 614586592.

The previous prime is 1305996541. The next prime is 1305996547. The reversal of 1305996542 is 2456995031.

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

It is a junction number, because it is equal to n+sod(n) for n = 1305996493 and 1305996502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305996541) 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, 19205798 + ... + 19205865.

It is an arithmetic number, because the mean of its divisors is an integer number (259278732).

Almost surely, 2^1305996542 is an apocalyptic number.

1305996542 is a deficient number, since it is larger than the sum of its proper divisors (768233314).

1305996542 is a wasteful number, since it uses less digits than its factorization.

1305996542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38411682.

The product of its (nonzero) digits is 291600, while the sum is 44.

The square root of 1305996542 is about 36138.5741556028. The cubic root of 1305996542 is about 1093.0684077234.

The spelling of 1305996542 in words is "one billion, three hundred five million, nine hundred ninety-six thousand, five hundred forty-two".