863450131 has 2 divisors, whose sum is σ = 863450132. Its totient is φ = 863450130.

The previous prime is 863450123. The next prime is 863450141. The reversal of 863450131 is 131054368.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 863450131 - 2³ = 863450123 is a prime.

It is a super-2 number, since 2×863450131² = 1491092257447834322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 863450093 and 863450102.

It is not a weakly prime, because it can be changed into another prime (863450141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431725065 + 431725066.

It is an arithmetic number, because the mean of its divisors is an integer number (431725066).

Almost surely, 2^863450131 is an apocalyptic number.

863450131 is a deficient number, since it is larger than the sum of its proper divisors (1).

863450131 is an equidigital number, since it uses as much as digits as its factorization.

863450131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 863450131 is about 29384.5219631016. The cubic root of 863450131 is about 952.2385367679.

The spelling of 863450131 in words is "eight hundred sixty-three million, four hundred fifty thousand, one hundred thirty-one".