1542385 has 16 divisors (see below), whose sum is σ = 2031120. Its totient is φ = 1117440.

The previous prime is 1542383. The next prime is 1542421. The reversal of 1542385 is 5832451.

It can be written as a sum of positive squares in 8 ways, for example, as 651249 + 891136 = 807^2 + 944^2 .

It is not a de Polignac number, because 1542385 - 2¹ = 1542383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1542383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3771 + ... + 4159.

It is an arithmetic number, because the mean of its divisors is an integer number (126945).

2^1542385 is an apocalyptic number.

It is an amenable number.

1542385 is a deficient number, since it is larger than the sum of its proper divisors (488735).

1542385 is a wasteful number, since it uses less digits than its factorization.

1542385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468.

The product of its digits is 4800, while the sum is 28.

The square root of 1542385 is about 1241.9279367177. The cubic root of 1542385 is about 115.5396189739.

The spelling of 1542385 in words is "one million, five hundred forty-two thousand, three hundred eighty-five".