61634203 has 2 divisors, whose sum is σ = 61634204. Its totient is φ = 61634202.

The previous prime is 61634201. The next prime is 61634207. The reversal of 61634203 is 30243616.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61634203 - 2¹ = 61634201 is a prime.

Together with 61634201, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (61634201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30817101 + 30817102.

It is an arithmetic number, because the mean of its divisors is an integer number (30817102).

Almost surely, 2^61634203 is an apocalyptic number.

61634203 is a deficient number, since it is larger than the sum of its proper divisors (1).

61634203 is an equidigital number, since it uses as much as digits as its factorization.

61634203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 61634203 is about 7850.7453786249. The cubic root of 61634203 is about 395.0092461650.

Adding to 61634203 its reverse (30243616), we get a palindrome (91877819).

The spelling of 61634203 in words is "sixty-one million, six hundred thirty-four thousand, two hundred three".