1534642 has 4 divisors (see below), whose sum is σ = 2301966. Its totient is φ = 767320.

The previous prime is 1534633. The next prime is 1534657. The reversal of 1534642 is 2464351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2464351 = 47 ⋅52433.

It can be written as a sum of positive squares in only one way, i.e., 1466521 + 68121 = 1211^2 + 261^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383659 + ... + 383662.

2^1534642 is an apocalyptic number.

1534642 is a deficient number, since it is larger than the sum of its proper divisors (767324).

1534642 is an equidigital number, since it uses as much as digits as its factorization.

1534642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767323.

The product of its digits is 2880, while the sum is 25.

The square root of 1534642 is about 1238.8066838696. The cubic root of 1534642 is about 115.3459525621.

Adding to 1534642 its reverse (2464351), we get a palindrome (3998993).

The spelling of 1534642 in words is "one million, five hundred thirty-four thousand, six hundred forty-two".