1535923 has 2 divisors, whose sum is σ = 1535924. Its totient is φ = 1535922.

The previous prime is 1535909. The next prime is 1535929. The reversal of 1535923 is 3295351.

It is a strong prime.

It is an emirp because it is prime and its reverse (3295351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1535923 - 2¹³ = 1527731 is a prime.

1535923 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1535891 and 1535900.

It is not a weakly prime, because it can be changed into another prime (1535929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 767961 + 767962.

It is an arithmetic number, because the mean of its divisors is an integer number (767962).

2^1535923 is an apocalyptic number.

1535923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1535923 is an equidigital number, since it uses as much as digits as its factorization.

1535923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4050, while the sum is 28.

The square root of 1535923 is about 1239.3236058431. The cubic root of 1535923 is about 115.3780375851.

The spelling of 1535923 in words is "one million, five hundred thirty-five thousand, nine hundred twenty-three".