403145131 has 2 divisors, whose sum is σ = 403145132. Its totient is φ = 403145130.

The previous prime is 403145107. The next prime is 403145147. The reversal of 403145131 is 131541304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 403145131 - 2⁷ = 403145003 is a prime.

It is a super-2 number, since 2×403145131² = 325051993298014322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (403145161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201572565 + 201572566.

It is an arithmetic number, because the mean of its divisors is an integer number (201572566).

Almost surely, 2^403145131 is an apocalyptic number.

403145131 is a deficient number, since it is larger than the sum of its proper divisors (1).

403145131 is an equidigital number, since it uses as much as digits as its factorization.

403145131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 403145131 is about 20078.4743195294. The cubic root of 403145131 is about 738.7323872947.

Adding to 403145131 its reverse (131541304), we get a palindrome (534686435).

The spelling of 403145131 in words is "four hundred three million, one hundred forty-five thousand, one hundred thirty-one".