142771632 has 20 divisors (see below), whose sum is σ = 368826840. Its totient is φ = 47590528.

The previous prime is 142771631. The next prime is 142771633. The reversal of 142771632 is 236177241.

It is an interprime number because it is at equal distance from previous prime (142771631) and next prime (142771633).

It is a junction number, because it is equal to n+sod(n) for n = 142771593 and 142771602.

It is not an unprimeable number, because it can be changed into a prime (142771631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1487157 + ... + 1487252.

It is an arithmetic number, because the mean of its divisors is an integer number (18441342).

Almost surely, 2^142771632 is an apocalyptic number.

142771632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142771632 is an abundant number, since it is smaller than the sum of its proper divisors (226055208).

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

142771632 is a wasteful number, since it uses less digits than its factorization.

142771632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974420 (or 2974414 counting only the distinct ones).

The product of its digits is 14112, while the sum is 33.

The square root of 142771632 is about 11948.7083820805. The cubic root of 142771632 is about 522.6536343007.

The spelling of 142771632 in words is "one hundred forty-two million, seven hundred seventy-one thousand, six hundred thirty-two".