431401541 has 4 divisors (see below), whose sum is σ = 436862400. Its totient is φ = 425940684.

The previous prime is 431401519. The next prime is 431401559. The reversal of 431401541 is 145104134.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431401541 is a prime.

It is a super-2 number, since 2×431401541² = 372214579154349362, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431401511) 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, 2730311 + ... + 2730468.

It is an arithmetic number, because the mean of its divisors is an integer number (109215600).

Almost surely, 2^431401541 is an apocalyptic number.

It is an amenable number.

431401541 is a deficient number, since it is larger than the sum of its proper divisors (5460859).

431401541 is an equidigital number, since it uses as much as digits as its factorization.

431401541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5460858.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 431401541 is about 20770.2080153281. The cubic root of 431401541 is about 755.6033894080.

Adding to 431401541 its reverse (145104134), we get a palindrome (576505675).

The spelling of 431401541 in words is "four hundred thirty-one million, four hundred one thousand, five hundred forty-one".