201426629 has 2 divisors, whose sum is σ = 201426630. Its totient is φ = 201426628.

The previous prime is 201426593. The next prime is 201426647. The reversal of 201426629 is 926624102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197824225 + 3602404 = 14065^2 + 1898^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201426629 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201426595 and 201426604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201426679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100713314 + 100713315.

It is an arithmetic number, because the mean of its divisors is an integer number (100713315).

Almost surely, 2^201426629 is an apocalyptic number.

It is an amenable number.

201426629 is a deficient number, since it is larger than the sum of its proper divisors (1).

201426629 is an equidigital number, since it uses as much as digits as its factorization.

201426629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 201426629 is about 14192.4849480280. The cubic root of 201426629 is about 586.1907506463.

The spelling of 201426629 in words is "two hundred one million, four hundred twenty-six thousand, six hundred twenty-nine".