1542023 has 16 divisors (see below), whose sum is σ = 1858560. Its totient is φ = 1251936.

The previous prime is 1542007. The next prime is 1542029. The reversal of 1542023 is 3202451.

It is not a de Polignac number, because 1542023 - 2⁴ = 1542007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1541992 and 1542010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1542029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14093 + ... + 14201.

It is an arithmetic number, because the mean of its divisors is an integer number (116160).

2^1542023 is an apocalyptic number.

1542023 is a deficient number, since it is larger than the sum of its proper divisors (316537).

1542023 is a wasteful number, since it uses less digits than its factorization.

1542023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1542023 is about 1241.7821870199. The cubic root of 1542023 is about 115.5305791612.

Adding to 1542023 its reverse (3202451), we get a palindrome (4744474).

The spelling of 1542023 in words is "one million, five hundred forty-two thousand, twenty-three".