431240141 has 4 divisors (see below), whose sum is σ = 431301984. Its totient is φ = 431178300.

The previous prime is 431240129. The next prime is 431240153. The reversal of 431240141 is 141042134.

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 (431240129) and next prime (431240153).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431240141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431240111) 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, 18905 + ... + 34926.

It is an arithmetic number, because the mean of its divisors is an integer number (107825496).

Almost surely, 2^431240141 is an apocalyptic number.

It is an amenable number.

431240141 is a deficient number, since it is larger than the sum of its proper divisors (61843).

431240141 is an equidigital number, since it uses as much as digits as its factorization.

431240141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61842.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 431240141 is about 20766.3222791134. The cubic root of 431240141 is about 755.5091465063.

Adding to 431240141 its reverse (141042134), we get a palindrome (572282275).

The spelling of 431240141 in words is "four hundred thirty-one million, two hundred forty thousand, one hundred forty-one".