203049961 has 2 divisors, whose sum is σ = 203049962. Its totient is φ = 203049960.

The previous prime is 203049937. The next prime is 203049983. The reversal of 203049961 is 169940302.

203049961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202635225 + 414736 = 14235^2 + 644^2 .

It is a cyclic number.

It is not a de Polignac number, because 203049961 - 2⁵ = 203049929 is a prime.

It is a super-4 number, since 4×203049961⁴ (a number of 34 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (203049661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101524980 + 101524981.

It is an arithmetic number, because the mean of its divisors is an integer number (101524981).

Almost surely, 2^203049961 is an apocalyptic number.

It is an amenable number.

203049961 is a deficient number, since it is larger than the sum of its proper divisors (1).

203049961 is an equidigital number, since it uses as much as digits as its factorization.

203049961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 203049961 is about 14249.5600282956. The cubic root of 203049961 is about 587.7612766337.

The spelling of 203049961 in words is "two hundred three million, forty-nine thousand, nine hundred sixty-one".