140645741 has 8 divisors (see below), whose sum is σ = 142595040. Its totient is φ = 138702672.

The previous prime is 140645731. The next prime is 140645749. The reversal of 140645741 is 147546041.

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

It is a cyclic number.

It is not a de Polignac number, because 140645741 - 2⁶ = 140645677 is a prime.

It is a super-2 number, since 2×140645741² = 39562448922878162, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140645698 and 140645707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140645749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60191 + ... + 62483.

It is an arithmetic number, because the mean of its divisors is an integer number (17824380).

Almost surely, 2^140645741 is an apocalyptic number.

It is an amenable number.

140645741 is a deficient number, since it is larger than the sum of its proper divisors (1949299).

140645741 is an equidigital number, since it uses as much as digits as its factorization.

140645741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3115.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 140645741 is about 11859.4157107338. The cubic root of 140645741 is about 520.0465207394.

The spelling of 140645741 in words is "one hundred forty million, six hundred forty-five thousand, seven hundred forty-one".