131401651 has 2 divisors, whose sum is σ = 131401652. Its totient is φ = 131401650.

The previous prime is 131401637. The next prime is 131401657. The reversal of 131401651 is 156104131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131401651 - 2¹⁹ = 130877363 is a prime.

It is not a weakly prime, because it can be changed into another prime (131401657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65700825 + 65700826.

It is an arithmetic number, because the mean of its divisors is an integer number (65700826).

Almost surely, 2^131401651 is an apocalyptic number.

131401651 is a deficient number, since it is larger than the sum of its proper divisors (1).

131401651 is an equidigital number, since it uses as much as digits as its factorization.

131401651 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 22.

The square root of 131401651 is about 11463.0559189075. The cubic root of 131401651 is about 508.3938332603.

Adding to 131401651 its reverse (156104131), we get a palindrome (287505782).

The spelling of 131401651 in words is "one hundred thirty-one million, four hundred one thousand, six hundred fifty-one".