1356112439 has 4 divisors (see below), whose sum is σ = 1479395400. Its totient is φ = 1232829480.

The previous prime is 1356112409. The next prime is 1356112469. The reversal of 1356112439 is 9342116531.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1356112409) and next prime (1356112469).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1356112439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1356112399 and 1356112408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1356112409) 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, 61641464 + ... + 61641485.

It is an arithmetic number, because the mean of its divisors is an integer number (369848850).

Almost surely, 2^1356112439 is an apocalyptic number.

1356112439 is a deficient number, since it is larger than the sum of its proper divisors (123282961).

1356112439 is a wasteful number, since it uses less digits than its factorization.

1356112439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123282960.

The product of its digits is 19440, while the sum is 35.

The square root of 1356112439 is about 36825.4319594489. The cubic root of 1356112439 is about 1106.8749693883.

The spelling of 1356112439 in words is "one billion, three hundred fifty-six million, one hundred twelve thousand, four hundred thirty-nine".