63131601 has 16 divisors (see below), whose sum is σ = 91488320. Its totient is φ = 38491200.

The previous prime is 63131599. The next prime is 63131603. The reversal of 63131601 is 10613136.

It is an interprime number because it is at equal distance from previous prime (63131599) and next prime (63131603).

It is not a de Polignac number, because 63131601 - 2¹ = 63131599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63131603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3175 + ... + 11676.

It is an arithmetic number, because the mean of its divisors is an integer number (5718020).

Almost surely, 2^63131601 is an apocalyptic number.

It is an amenable number.

63131601 is a deficient number, since it is larger than the sum of its proper divisors (28356719).

63131601 is a wasteful number, since it uses less digits than its factorization.

63131601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14976.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 63131601 is about 7945.5396921795. The cubic root of 63131601 is about 398.1825904792.

Adding to 63131601 its reverse (10613136), we get a palindrome (73744737).

The spelling of 63131601 in words is "sixty-three million, one hundred thirty-one thousand, six hundred one".