64101431 has 2 divisors, whose sum is σ = 64101432. Its totient is φ = 64101430.

The previous prime is 64101419. The next prime is 64101487. The reversal of 64101431 is 13410146.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64101431 is a prime.

It is a super-2 number, since 2×64101431² = 8217986912495522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64101731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32050715 + 32050716.

It is an arithmetic number, because the mean of its divisors is an integer number (32050716).

Almost surely, 2^64101431 is an apocalyptic number.

64101431 is a deficient number, since it is larger than the sum of its proper divisors (1).

64101431 is an equidigital number, since it uses as much as digits as its factorization.

64101431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 64101431 is about 8006.3369277092. The cubic root of 64101431 is about 400.2112030469.

Adding to 64101431 its reverse (13410146), we get a palindrome (77511577).

The spelling of 64101431 in words is "sixty-four million, one hundred one thousand, four hundred thirty-one".