142051644 has 60 divisors (see below), whose sum is σ = 424407984. Its totient is φ = 40585536.

The previous prime is 142051631. The next prime is 142051673. The reversal of 142051644 is 446150241.

142051644 is a `hidden beast` number, since 14 + 2 + 0 + 5 + 1 + 644 = 666.

142051644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29049 + ... + 33584.

Almost surely, 2^142051644 is an apocalyptic number.

142051644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

142051644 is an abundant number, since it is smaller than the sum of its proper divisors (282356340).

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

142051644 is a wasteful number, since it uses less digits than its factorization.

142051644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62656 (or 62645 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 142051644 is about 11918.5420249291. The cubic root of 142051644 is about 521.7735839313.

The spelling of 142051644 in words is "one hundred forty-two million, fifty-one thousand, six hundred forty-four".