1357744111 has 4 divisors (see below), whose sum is σ = 1371187224. Its totient is φ = 1344301000.

The previous prime is 1357744099. The next prime is 1357744139. The reversal of 1357744111 is 1114477531.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1357744111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1357744811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6721405 + ... + 6721606.

It is an arithmetic number, because the mean of its divisors is an integer number (342796806).

Almost surely, 2^1357744111 is an apocalyptic number.

1357744111 is a deficient number, since it is larger than the sum of its proper divisors (13443113).

1357744111 is a wasteful number, since it uses less digits than its factorization.

1357744111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13443112.

The product of its digits is 11760, while the sum is 34.

The square root of 1357744111 is about 36847.5794456027. The cubic root of 1357744111 is about 1107.3187214399.

The spelling of 1357744111 in words is "one billion, three hundred fifty-seven million, seven hundred forty-four thousand, one hundred eleven".