1357849 has 4 divisors (see below), whose sum is σ = 1371136. Its totient is φ = 1344564.

The previous prime is 1357843. The next prime is 1357871. The reversal of 1357849 is 9487531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9487531 = 1361 ⋅6971.

It is a cyclic number.

It is not a de Polignac number, because 1357849 - 2⁵ = 1357817 is a prime.

It is a d-powerful number, because it can be written as 1 + 3¹² + 5 + 7² + 8⁵ + 4⁹ + 9⁶ .

It is not an unprimeable number, because it can be changed into a prime (1357843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6489 + ... + 6694.

It is an arithmetic number, because the mean of its divisors is an integer number (342784).

2^1357849 is an apocalyptic number.

It is an amenable number.

1357849 is a deficient number, since it is larger than the sum of its proper divisors (13287).

1357849 is a wasteful number, since it uses less digits than its factorization.

1357849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13286.

The product of its digits is 30240, while the sum is 37.

The square root of 1357849 is about 1165.2677803835. The cubic root of 1357849 is about 110.7347235051.

The spelling of 1357849 in words is "one million, three hundred fifty-seven thousand, eight hundred forty-nine".