1542073 has 4 divisors (see below), whose sum is σ = 1660708. Its totient is φ = 1423440.

The previous prime is 1542071. The next prime is 1542077. The reversal of 1542073 is 3702451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3702451 = 379 ⋅9769.

It can be written as a sum of positive squares in 2 ways, for example, as 558009 + 984064 = 747^2 + 992^2 .

It is a cyclic number.

It is not a de Polignac number, because 1542073 - 2¹ = 1542071 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1542071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59298 + ... + 59323.

It is an arithmetic number, because the mean of its divisors is an integer number (415177).

2^1542073 is an apocalyptic number.

1542073 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1542073 is a deficient number, since it is larger than the sum of its proper divisors (118635).

1542073 is a wasteful number, since it uses less digits than its factorization.

1542073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118634.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 1542073 is about 1241.8023192119. The cubic root of 1542073 is about 115.5318278383.

The spelling of 1542073 in words is "one million, five hundred forty-two thousand, seventy-three".