142182730 has 16 divisors (see below), whose sum is σ = 270983880. Its totient is φ = 53527552.

The previous prime is 142182727. The next prime is 142182731. The reversal of 142182730 is 37281241.

It can be written as a sum of positive squares in 4 ways, for example, as 139783329 + 2399401 = 11823^2 + 1549^2 .

It is not an unprimeable number, because it can be changed into a prime (142182731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418015 + ... + 418354.

Almost surely, 2^142182730 is an apocalyptic number.

142182730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142182730 is a deficient number, since it is larger than the sum of its proper divisors (128801150).

142182730 is a wasteful number, since it uses less digits than its factorization.

142182730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836393.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 142182730 is about 11924.0400032875. The cubic root of 142182730 is about 521.9340330510.

The spelling of 142182730 in words is "one hundred forty-two million, one hundred eighty-two thousand, seven hundred thirty".