1305023134 has 8 divisors (see below), whose sum is σ = 1994469480. Its totient is φ = 640199976.

The previous prime is 1305023131. The next prime is 1305023147. The reversal of 1305023134 is 4313205031.

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 (1305023131) 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, 6155664 + ... + 6155875.

It is an arithmetic number, because the mean of its divisors is an integer number (249308685).

Almost surely, 2^1305023134 is an apocalyptic number.

1305023134 is a deficient number, since it is larger than the sum of its proper divisors (689446346).

1305023134 is a wasteful number, since it uses less digits than its factorization.

1305023134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12311594.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1305023134 is about 36125.1039306463. The cubic root of 1305023134 is about 1092.7967719892.

Adding to 1305023134 its reverse (4313205031), we get a palindrome (5618228165).

The spelling of 1305023134 in words is "one billion, three hundred five million, twenty-three thousand, one hundred thirty-four".