142277472 has 192 divisors, whose sum is σ = 446342400. Its totient is φ = 44509824.

The previous prime is 142277467. The next prime is 142277479. The reversal of 142277472 is 274772241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142277479) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1329643 + ... + 1329749.

It is an arithmetic number, because the mean of its divisors is an integer number (2324700).

Almost surely, 2^142277472 is an apocalyptic number.

142277472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142277472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223171200).

142277472 is an abundant number, since it is smaller than the sum of its proper divisors (304064928).

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

142277472 is an equidigital number, since it uses as much as digits as its factorization.

142277472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 131 counting only the distinct ones).

The product of its digits is 43904, while the sum is 36.

The square root of 142277472 is about 11928.0120724285. The cubic root of 142277472 is about 522.0499357698.

The spelling of 142277472 in words is "one hundred forty-two million, two hundred seventy-seven thousand, four hundred seventy-two".