240157641 has 4 divisors (see below), whose sum is σ = 320210192. Its totient is φ = 160105092.

The previous prime is 240157633. The next prime is 240157649. The reversal of 240157641 is 146751042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (240157633) and next prime (240157649).

It is not a de Polignac number, because 240157641 - 2³ = 240157633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240157599 and 240157608.

It is not an unprimeable number, because it can be changed into a prime (240157649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40026271 + ... + 40026276.

It is an arithmetic number, because the mean of its divisors is an integer number (80052548).

Almost surely, 2^240157641 is an apocalyptic number.

It is an amenable number.

240157641 is a deficient number, since it is larger than the sum of its proper divisors (80052551).

240157641 is an equidigital number, since it uses as much as digits as its factorization.

240157641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80052550.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 240157641 is about 15497.0203910300. The cubic root of 240157641 is about 621.5825345333.

The spelling of 240157641 in words is "two hundred forty million, one hundred fifty-seven thousand, six hundred forty-one".