1357081 has 8 divisors (see below), whose sum is σ = 1495584. Its totient is φ = 1221120.

The previous prime is 1357079. The next prime is 1357091. The reversal of 1357081 is 1807531.

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 1357081 - 2¹ = 1357079 is a prime.

It is a super-2 number, since 2×1357081² = 3683337681122, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (1357001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601 + ... + 1753.

It is an arithmetic number, because the mean of its divisors is an integer number (186948).

2^1357081 is an apocalyptic number.

1357081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1357081 is a deficient number, since it is larger than the sum of its proper divisors (138503).

1357081 is a wasteful number, since it uses less digits than its factorization.

1357081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 1357081 is about 1164.9381957855. The cubic root of 1357081 is about 110.7138423648.

The spelling of 1357081 in words is "one million, three hundred fifty-seven thousand, eighty-one".