142936442930 has 8 divisors (see below), whose sum is σ = 257285597292. Its totient is φ = 57174577168.

The previous prime is 142936442899. The next prime is 142936442933. The reversal of 142936442930 is 39244639241.

It can be written as a sum of positive squares in 2 ways, for example, as 135224617441 + 7711825489 = 367729^2 + 87817^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×142936442930² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142936442933) 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, 7146822137 + ... + 7146822156.

Almost surely, 2^142936442930 is an apocalyptic number.

142936442930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142936442930 is a deficient number, since it is larger than the sum of its proper divisors (114349154362).

142936442930 is a wasteful number, since it uses less digits than its factorization.

142936442930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14293644300.

The product of its (nonzero) digits is 1119744, while the sum is 47.

The spelling of 142936442930 in words is "one hundred forty-two billion, nine hundred thirty-six million, four hundred forty-two thousand, nine hundred thirty".