30961741 has 2 divisors, whose sum is σ = 30961742. Its totient is φ = 30961740.

The previous prime is 30961729. The next prime is 30961757. The reversal of 30961741 is 14716903.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23377225 + 7584516 = 4835^2 + 2754^2 .

It is a cyclic number.

It is not a de Polignac number, because 30961741 - 2⁷ = 30961613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30961771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15480870 + 15480871.

It is an arithmetic number, because the mean of its divisors is an integer number (15480871).

Almost surely, 2^30961741 is an apocalyptic number.

It is an amenable number.

30961741 is a deficient number, since it is larger than the sum of its proper divisors (1).

30961741 is an equidigital number, since it uses as much as digits as its factorization.

30961741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 30961741 is about 5564.3275424799. The cubic root of 30961741 is about 314.0087796915.

The spelling of 30961741 in words is "thirty million, nine hundred sixty-one thousand, seven hundred forty-one".