140971630 has 32 divisors (see below), whose sum is σ = 261654624. Its totient is φ = 54652416.

The previous prime is 140971613. The next prime is 140971631. The reversal of 140971630 is 36179041.

It is a happy number.

140971630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 140971592 and 140971601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140971631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57714 + ... + 60106.

It is an arithmetic number, because the mean of its divisors is an integer number (8176707).

Almost surely, 2^140971630 is an apocalyptic number.

140971630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140971630 is a deficient number, since it is larger than the sum of its proper divisors (120682994).

140971630 is a wasteful number, since it uses less digits than its factorization.

140971630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 140971630 is about 11873.1474344421. The cubic root of 140971630 is about 520.4478759680.

The spelling of 140971630 in words is "one hundred forty million, nine hundred seventy-one thousand, six hundred thirty".