1542145 has 12 divisors (see below), whose sum is σ = 2034900. Its totient is φ = 1121120.

The previous prime is 1542137. The next prime is 1542179. The reversal of 1542145 is 5412451.

It can be written as a sum of positive squares in 2 ways, for example, as 1046529 + 495616 = 1023^2 + 704^2 .

It is not a de Polignac number, because 1542145 - 2³ = 1542137 is a prime.

It is a super-2 number, since 2×1542145² = 4756422402050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 670 + ... + 1879.

It is an arithmetic number, because the mean of its divisors is an integer number (169575).

It is a Proth number, since it is equal to 753 ⋅ 2¹¹ + 1 and 753 < 2¹¹.

2^1542145 is an apocalyptic number.

It is an amenable number.

1542145 is a deficient number, since it is larger than the sum of its proper divisors (492755).

1542145 is a wasteful number, since it uses less digits than its factorization.

1542145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2576 (or 2565 counting only the distinct ones).

The product of its digits is 800, while the sum is 22.

The square root of 1542145 is about 1241.8313089949. The cubic root of 1542145 is about 115.5336258859.

Adding to 1542145 its reverse (5412451), we get a palindrome (6954596).

The spelling of 1542145 in words is "one million, five hundred forty-two thousand, one hundred forty-five".