142940930 has 48 divisors (see below), whose sum is σ = 299489400. Its totient is φ = 48913920.

The previous prime is 142940927. The next prime is 142940983. The reversal of 142940930 is 39049241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 141395881 + 1545049 = 11891^2 + 1243^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17096 + ... + 24044.

Almost surely, 2^142940930 is an apocalyptic number.

142940930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142940930 is an abundant number, since it is smaller than the sum of its proper divisors (156548470).

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

142940930 is a wasteful number, since it uses less digits than its factorization.

142940930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6995 (or 6984 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 142940930 is about 11955.7906472136. The cubic root of 142940930 is about 522.8601395240.

The spelling of 142940930 in words is "one hundred forty-two million, nine hundred forty thousand, nine hundred thirty".