140970031 has 2 divisors, whose sum is σ = 140970032. Its totient is φ = 140970030.

The previous prime is 140970019. The next prime is 140970079. The reversal of 140970031 is 130079041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140970031 - 2⁵ = 140969999 is a prime.

It is a super-2 number, since 2×140970031² = 39745099280281922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140969978 and 140970005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140970091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70485015 + 70485016.

It is an arithmetic number, because the mean of its divisors is an integer number (70485016).

Almost surely, 2^140970031 is an apocalyptic number.

140970031 is a deficient number, since it is larger than the sum of its proper divisors (1).

140970031 is an equidigital number, since it uses as much as digits as its factorization.

140970031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 140970031 is about 11873.0800974305. The cubic root of 140970031 is about 520.4459081979.

The spelling of 140970031 in words is "one hundred forty million, nine hundred seventy thousand, thirty-one".