1497143 has 4 divisors (see below), whose sum is σ = 1575960. Its totient is φ = 1418328.

The previous prime is 1497127. The next prime is 1497149. The reversal of 1497143 is 3417941.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1497143 - 2⁴ = 1497127 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 (1497149) 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, 39380 + ... + 39417.

It is an arithmetic number, because the mean of its divisors is an integer number (393990).

2^1497143 is an apocalyptic number.

1497143 is a deficient number, since it is larger than the sum of its proper divisors (78817).

1497143 is an equidigital number, since it uses as much as digits as its factorization.

1497143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78816.

The product of its digits is 3024, while the sum is 29.

The square root of 1497143 is about 1223.5779501119. The cubic root of 1497143 is about 114.3987014295.

The spelling of 1497143 in words is "one million, four hundred ninety-seven thousand, one hundred forty-three".