1542240341 has 4 divisors (see below), whose sum is σ = 1542420684. Its totient is φ = 1542060000.

The previous prime is 1542240319. The next prime is 1542240361. The reversal of 1542240341 is 1430422451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1430422451 = 139 ⋅10290809.

It can be written as a sum of positive squares in 2 ways, for example, as 279859441 + 1262380900 = 16729^2 + 35530^2 .

It is a cyclic number.

It is not a de Polignac number, because 1542240341 - 2⁶ = 1542240277 is a prime.

It is a super-3 number, since 3×1542240341³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1542240341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1542240361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76670 + ... + 94671.

It is an arithmetic number, because the mean of its divisors is an integer number (385605171).

Almost surely, 2^1542240341 is an apocalyptic number.

It is an amenable number.

1542240341 is a deficient number, since it is larger than the sum of its proper divisors (180343).

1542240341 is an equidigital number, since it uses as much as digits as its factorization.

1542240341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180342.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1542240341 is about 39271.3679542743. The cubic root of 1542240341 is about 1155.3600673953.

Adding to 1542240341 its reverse (1430422451), we get a palindrome (2972662792).

The spelling of 1542240341 in words is "one billion, five hundred forty-two million, two hundred forty thousand, three hundred forty-one".