3540142 has 4 divisors (see below), whose sum is σ = 5310216. Its totient is φ = 1770070.

The previous prime is 3540139. The next prime is 3540149. The reversal of 3540142 is 2410453.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3540149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 885034 + ... + 885037.

It is an arithmetic number, because the mean of its divisors is an integer number (1327554).

Almost surely, 2^3540142 is an apocalyptic number.

3540142 is a deficient number, since it is larger than the sum of its proper divisors (1770074).

3540142 is a wasteful number, since it uses less digits than its factorization.

3540142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770073.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 3540142 is about 1881.5265079185. The cubic root of 3540142 is about 152.4076947454.

Adding to 3540142 its reverse (2410453), we get a palindrome (5950595).

The spelling of 3540142 in words is "three million, five hundred forty thousand, one hundred forty-two".