131421053 has 2 divisors, whose sum is σ = 131421054. Its totient is φ = 131421052.

The previous prime is 131421013. The next prime is 131421061. The reversal of 131421053 is 350124131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83576164 + 47844889 = 9142^2 + 6917^2 .

It is a cyclic number.

It is not a de Polignac number, because 131421053 - 2¹⁶ = 131355517 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131421013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65710526 + 65710527.

It is an arithmetic number, because the mean of its divisors is an integer number (65710527).

Almost surely, 2^131421053 is an apocalyptic number.

It is an amenable number.

131421053 is a deficient number, since it is larger than the sum of its proper divisors (1).

131421053 is an equidigital number, since it uses as much as digits as its factorization.

131421053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 131421053 is about 11463.9021715993. The cubic root of 131421053 is about 508.4188541831.

Adding to 131421053 its reverse (350124131), we get a palindrome (481545184).

The spelling of 131421053 in words is "one hundred thirty-one million, four hundred twenty-one thousand, fifty-three".