142002252 has 36 divisors (see below), whose sum is σ = 410229456. Its totient is φ = 40572000.

The previous prime is 142002251. The next prime is 142002307. The reversal of 142002252 is 252200241.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (142002251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281499 + ... + 282002.

Almost surely, 2^142002252 is an apocalyptic number.

142002252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142002252 is an abundant number, since it is smaller than the sum of its proper divisors (268227204).

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

142002252 is a wasteful number, since it uses less digits than its factorization.

142002252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563518 (or 563513 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 142002252 is about 11916.4697792593. The cubic root of 142002252 is about 521.7131025748.

Adding to 142002252 its reverse (252200241), we get a palindrome (394202493).

The spelling of 142002252 in words is "one hundred forty-two million, two thousand, two hundred fifty-two".