1457087 has 4 divisors (see below), whose sum is σ = 1542816. Its totient is φ = 1371360.

The previous prime is 1457083. The next prime is 1457111. The reversal of 1457087 is 7807541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7807541 = 7 ⋅1115363.

It is a cyclic number.

It is not a de Polignac number, because 1457087 - 2² = 1457083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1457083) 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, 42839 + ... + 42872.

It is an arithmetic number, because the mean of its divisors is an integer number (385704).

2^1457087 is an apocalyptic number.

1457087 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1457087 is a deficient number, since it is larger than the sum of its proper divisors (85729).

1457087 is an equidigital number, since it uses as much as digits as its factorization.

1457087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85728.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 1457087 is about 1207.0985875230. The cubic root of 1457087 is about 113.3692206611.

The spelling of 1457087 in words is "one million, four hundred fifty-seven thousand, eighty-seven".