1357701409 has 3 divisors (see below), whose sum is σ = 1357738257. Its totient is φ = 1357664562.

The previous prime is 1357701407. The next prime is 1357701463. The reversal of 1357701409 is 9041077531.

The square root of 1357701409 is 36847.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1357701409 - 2¹ = 1357701407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1357701403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 18424 + ... + 55270.

It is an arithmetic number, because the mean of its divisors is an integer number (452579419).

Almost surely, 2^1357701409 is an apocalyptic number.

1357701409 is the 36847-th square number.

1357701409 is the 18424-th centered octagonal number.

It is an amenable number.

1357701409 is a deficient number, since it is larger than the sum of its proper divisors (36848).

1357701409 is an frugal number, since it uses more digits than its factorization.

1357701409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73694 (or 36847 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 37.

The cubic root of 1357701409 is about 1107.3071126693.

The spelling of 1357701409 in words is "one billion, three hundred fifty-seven million, seven hundred one thousand, four hundred nine".