142245051 has 32 divisors (see below), whose sum is σ = 209018880. Its totient is φ = 85519104.

The previous prime is 142245049. The next prime is 142245079. The reversal of 142245051 is 150542241.

It is not a de Polignac number, because 142245051 - 2¹ = 142245049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142245011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 371206 + ... + 371588.

It is an arithmetic number, because the mean of its divisors is an integer number (6531840).

Almost surely, 2^142245051 is an apocalyptic number.

142245051 is a deficient number, since it is larger than the sum of its proper divisors (66773829).

142245051 is a wasteful number, since it uses less digits than its factorization.

142245051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 142245051 is about 11926.6529671991. The cubic root of 142245051 is about 522.0102793002.

Adding to 142245051 its reverse (150542241), we get a palindrome (292787292).

The spelling of 142245051 in words is "one hundred forty-two million, two hundred forty-five thousand, fifty-one".