142669452 has 12 divisors (see below), whose sum is σ = 332895416. Its totient is φ = 47556480.

The previous prime is 142669427. The next prime is 142669477. The reversal of 142669452 is 254966241.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (142669427) and next prime (142669477).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 142669452.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5944549 + ... + 5944572.

Almost surely, 2^142669452 is an apocalyptic number.

142669452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142669452 is an abundant number, since it is smaller than the sum of its proper divisors (190225964).

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

142669452 is a wasteful number, since it uses less digits than its factorization.

142669452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11889128 (or 11889126 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 142669452 is about 11944.4318408202. The cubic root of 142669452 is about 522.5289188301.

The spelling of 142669452 in words is "one hundred forty-two million, six hundred sixty-nine thousand, four hundred fifty-two".