140306965 has 8 divisors (see below), whose sum is σ = 168435288. Its totient is φ = 112200960.

The previous prime is 140306941. The next prime is 140306989. The reversal of 140306965 is 569603041.

It is an interprime number because it is at equal distance from previous prime (140306941) and next prime (140306989).

It can be written as a sum of positive squares in 4 ways, for example, as 6280036 + 134026929 = 2506^2 + 11577^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-140306965 is a prime.

It is a super-2 number, since 2×140306965² = 39372088855022450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140306965.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15505 + ... + 22825.

It is an arithmetic number, because the mean of its divisors is an integer number (21054411).

Almost surely, 2^140306965 is an apocalyptic number.

It is an amenable number.

140306965 is a deficient number, since it is larger than the sum of its proper divisors (28128323).

140306965 is an equidigital number, since it uses as much as digits as its factorization.

140306965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11159.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 140306965 is about 11845.1241023469. The cubic root of 140306965 is about 519.6286364771.

The spelling of 140306965 in words is "one hundred forty million, three hundred six thousand, nine hundred sixty-five".