140968129 has 9 divisors (see below), whose sum is σ = 146043489. Its totient is φ = 136064580.

The previous prime is 140968117. The next prime is 140968141. The reversal of 140968129 is 921869041.

The square root of 140968129 is 11873.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (140968117) and next prime (140968141).

It is not a de Polignac number, because 140968129 - 2¹¹ = 140966081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140968091 and 140968100.

It is not an unprimeable number, because it can be changed into a prime (140968109) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 367872 + ... + 368254.

Almost surely, 2^140968129 is an apocalyptic number.

140968129 is the 11873-rd square number.

140968129 is the 5937-th centered octagonal number.

It is an amenable number.

140968129 is a deficient number, since it is larger than the sum of its proper divisors (5075360).

140968129 is an frugal number, since it uses more digits than its factorization.

140968129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828 (or 414 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The cubic root of 140968129 is about 520.4435675288.

The spelling of 140968129 in words is "one hundred forty million, nine hundred sixty-eight thousand, one hundred twenty-nine".