1357117993 has 16 divisors (see below), whose sum is σ = 1695288960. Its totient is φ = 1055433600.

The previous prime is 1357117991. The next prime is 1357118003. The reversal of 1357117993 is 3997117531.

It is a cyclic number.

It is not a de Polignac number, because 1357117993 - 2¹ = 1357117991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1357117991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23203 + ... + 57031.

It is an arithmetic number, because the mean of its divisors is an integer number (105955560).

Almost surely, 2^1357117993 is an apocalyptic number.

It is an amenable number.

1357117993 is a deficient number, since it is larger than the sum of its proper divisors (338170967).

1357117993 is a wasteful number, since it uses less digits than its factorization.

1357117993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34368.

The product of its digits is 178605, while the sum is 46.

The square root of 1357117993 is about 36839.0824125683. The cubic root of 1357117993 is about 1107.1484834749.

The spelling of 1357117993 in words is "one billion, three hundred fifty-seven million, one hundred seventeen thousand, nine hundred ninety-three".