1357147 has 4 divisors (see below), whose sum is σ = 1480536. Its totient is φ = 1233760.

The previous prime is 1357129. The next prime is 1357163. The reversal of 1357147 is 7417531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7417531 = 11 ⋅674321.

It is a de Polignac number, because none of the positive numbers 2^k-1357147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1357547) 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, 61678 + ... + 61699.

It is an arithmetic number, because the mean of its divisors is an integer number (370134).

2^1357147 is an apocalyptic number.

1357147 is a deficient number, since it is larger than the sum of its proper divisors (123389).

1357147 is a wasteful number, since it uses less digits than its factorization.

1357147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123388.

The product of its digits is 2940, while the sum is 28.

The square root of 1357147 is about 1164.9665231242. The cubic root of 1357147 is about 110.7156371472.

The spelling of 1357147 in words is "one million, three hundred fifty-seven thousand, one hundred forty-seven".