1357864993 has 8 divisors (see below), whose sum is σ = 1372421160. Its totient is φ = 1343347200.

The previous prime is 1357864967. The next prime is 1357865023. The reversal of 1357864993 is 3994687531.

It can be written as a sum of positive squares in 4 ways, for example, as 730512784 + 627352209 = 27028^2 + 25047^2 .

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 1357864993 - 2¹⁷ = 1357733921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1357804993) 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 7 ways as a sum of consecutive naturals, for example, 64593 + ... + 82993.

It is an arithmetic number, because the mean of its divisors is an integer number (171552645).

Almost surely, 2^1357864993 is an apocalyptic number.

It is an amenable number.

1357864993 is a deficient number, since it is larger than the sum of its proper divisors (14556167).

1357864993 is a wasteful number, since it uses less digits than its factorization.

1357864993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19187.

The product of its digits is 4898880, while the sum is 55.

The square root of 1357864993 is about 36849.2197067998. The cubic root of 1357864993 is about 1107.3515825483.

The spelling of 1357864993 in words is "one billion, three hundred fifty-seven million, eight hundred sixty-four thousand, nine hundred ninety-three".