1357641345 has 8 divisors (see below), whose sum is σ = 2172226176. Its totient is φ = 724075376.

The previous prime is 1357641289. The next prime is 1357641347. The reversal of 1357641345 is 5431467531.

1357641345 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 1357641345 - 2²² = 1353447041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1357641347) 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, 45254697 + ... + 45254726.

It is an arithmetic number, because the mean of its divisors is an integer number (271528272).

Almost surely, 2^1357641345 is an apocalyptic number.

1357641345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1357641345 is a deficient number, since it is larger than the sum of its proper divisors (814584831).

1357641345 is an equidigital number, since it uses as much as digits as its factorization.

1357641345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90509431.

The product of its digits is 151200, while the sum is 39.

The square root of 1357641345 is about 36846.1849449845. The cubic root of 1357641345 is about 1107.2907835327.

The spelling of 1357641345 in words is "one billion, three hundred fifty-seven million, six hundred forty-one thousand, three hundred forty-five".