142545276 has 18 divisors (see below), whose sum is σ = 360322872. Its totient is φ = 47515080.

The previous prime is 142545269. The next prime is 142545287. The reversal of 142545276 is 672545241.

It is a happy number.

142545276 is a `hidden beast` number, since 1 + 42 + 545 + 2 + 76 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3959591 = 142545276 / (1 + 4 + 2 + 5 + 4 + 5 + 2 + 7 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 142545276.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1979760 + ... + 1979831.

Almost surely, 2^142545276 is an apocalyptic number.

It is an amenable number.

142545276 is an abundant number, since it is smaller than the sum of its proper divisors (217777596).

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

142545276 is a wasteful number, since it uses less digits than its factorization.

142545276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3959601 (or 3959596 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 142545276 is about 11939.2326386581. The cubic root of 142545276 is about 522.3772760312.

The spelling of 142545276 in words is "one hundred forty-two million, five hundred forty-five thousand, two hundred seventy-six".