554640131 has 2 divisors, whose sum is σ = 554640132. Its totient is φ = 554640130.

The previous prime is 554640089. The next prime is 554640139. The reversal of 554640131 is 131046455.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 554640131 - 2⁶ = 554640067 is a prime.

It is a super-2 number, since 2×554640131² = 615251349831394322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 554640094 and 554640103.

It is not a weakly prime, because it can be changed into another prime (554640139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277320065 + 277320066.

It is an arithmetic number, because the mean of its divisors is an integer number (277320066).

Almost surely, 2^554640131 is an apocalyptic number.

554640131 is a deficient number, since it is larger than the sum of its proper divisors (1).

554640131 is an equidigital number, since it uses as much as digits as its factorization.

554640131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 554640131 is about 23550.7989461080. The cubic root of 554640131 is about 821.6189169949.

Adding to 554640131 its reverse (131046455), we get a palindrome (685686586).

The spelling of 554640131 in words is "five hundred fifty-four million, six hundred forty thousand, one hundred thirty-one".