1520142 has 16 divisors (see below), whose sum is σ = 3274320. Its totient is φ = 467712.

The previous prime is 1520131. The next prime is 1520143. The reversal of 1520142 is 2410251.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9667 + ... + 9822.

It is an arithmetic number, because the mean of its divisors is an integer number (204645).

2^1520142 is an apocalyptic number.

1520142 is an abundant number, since it is smaller than the sum of its proper divisors (1754178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1520142 is a wasteful number, since it uses less digits than its factorization.

1520142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19507.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1520142 is about 1232.9403878534. The cubic root of 1520142 is about 114.9815219208.

Adding to 1520142 its reverse (2410251), we get a palindrome (3930393).

The spelling of 1520142 in words is "one million, five hundred twenty thousand, one hundred forty-two".