1041720949 has 2 divisors, whose sum is σ = 1041720950. Its totient is φ = 1041720948.

The previous prime is 1041720941. The next prime is 1041720971. The reversal of 1041720949 is 9490271401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1035874225 + 5846724 = 32185^2 + 2418^2 .

It is a cyclic number.

It is not a de Polignac number, because 1041720949 - 2³ = 1041720941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1041720941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520860474 + 520860475.

It is an arithmetic number, because the mean of its divisors is an integer number (520860475).

Almost surely, 2^1041720949 is an apocalyptic number.

It is an amenable number.

1041720949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1041720949 is an equidigital number, since it uses as much as digits as its factorization.

1041720949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 1041720949 is about 32275.7021457319. The cubic root of 1041720949 is about 1013.7179406159.

The spelling of 1041720949 in words is "one billion, forty-one million, seven hundred twenty thousand, nine hundred forty-nine".