654245131 has 2 divisors, whose sum is σ = 654245132. Its totient is φ = 654245130.

The previous prime is 654245117. The next prime is 654245147. The reversal of 654245131 is 131542456.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 654245131 - 2⁷ = 654245003 is a prime.

It is a super-2 number, since 2×654245131² = 856073382874414322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 654245093 and 654245102.

It is not a weakly prime, because it can be changed into another prime (654245101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327122565 + 327122566.

It is an arithmetic number, because the mean of its divisors is an integer number (327122566).

Almost surely, 2^654245131 is an apocalyptic number.

654245131 is a deficient number, since it is larger than the sum of its proper divisors (1).

654245131 is an equidigital number, since it uses as much as digits as its factorization.

654245131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 31.

The square root of 654245131 is about 25578.2159463869. The cubic root of 654245131 is about 868.1208089086.

Adding to 654245131 its reverse (131542456), we get a palindrome (785787587).

The spelling of 654245131 in words is "six hundred fifty-four million, two hundred forty-five thousand, one hundred thirty-one".