140292641 has 8 divisors (see below), whose sum is σ = 146060904. Its totient is φ = 134628480.

The previous prime is 140292629. The next prime is 140292667. The reversal of 140292641 is 146292041.

It can be written as a sum of positive squares in 4 ways, for example, as 16638241 + 123654400 = 4079^2 + 11120^2 .

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 140292641 - 2¹⁸ = 140030497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140292601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23270 + ... + 28671.

It is an arithmetic number, because the mean of its divisors is an integer number (18257613).

Almost surely, 2^140292641 is an apocalyptic number.

It is an amenable number.

140292641 is a deficient number, since it is larger than the sum of its proper divisors (5768263).

140292641 is an equidigital number, since it uses as much as digits as its factorization.

140292641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52051.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 140292641 is about 11844.5194499397. The cubic root of 140292641 is about 519.6109528364.

The spelling of 140292641 in words is "one hundred forty million, two hundred ninety-two thousand, six hundred forty-one".