3520142 has 4 divisors (see below), whose sum is σ = 5280216. Its totient is φ = 1760070.

The previous prime is 3520141. The next prime is 3520147. The reversal of 3520142 is 2410253.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2410253 = 211 ⋅11423.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 3520142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3520141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 880034 + ... + 880037.

It is an arithmetic number, because the mean of its divisors is an integer number (1320054).

Almost surely, 2^3520142 is an apocalyptic number.

3520142 is a deficient number, since it is larger than the sum of its proper divisors (1760074).

3520142 is a wasteful number, since it uses less digits than its factorization.

3520142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760073.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 3520142 is about 1876.2041466749. The cubic root of 3520142 is about 152.1201439304.

Adding to 3520142 its reverse (2410253), we get a palindrome (5930395).

The spelling of 3520142 in words is "three million, five hundred twenty thousand, one hundred forty-two".