1357378289 has 8 divisors (see below), whose sum is σ = 1371712320. Its totient is φ = 1343062000.

The previous prime is 1357378271. The next prime is 1357378313. The reversal of 1357378289 is 9828737531.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1357378289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1357378289.

It is not an unprimeable number, because it can be changed into a prime (1357378219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196484 + ... + 203274.

It is an arithmetic number, because the mean of its divisors is an integer number (171464040).

Almost surely, 2^1357378289 is an apocalyptic number.

It is an amenable number.

1357378289 is a deficient number, since it is larger than the sum of its proper divisors (14334031).

1357378289 is a wasteful number, since it uses less digits than its factorization.

1357378289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8871.

The product of its digits is 2540160, while the sum is 53.

The square root of 1357378289 is about 36842.6151216224. The cubic root of 1357378289 is about 1107.2192628521.

The spelling of 1357378289 in words is "one billion, three hundred fifty-seven million, three hundred seventy-eight thousand, two hundred eighty-nine".