61949 has 2 divisors, whose sum is σ = 61950. Its totient is φ = 61948.

The previous prime is 61933. The next prime is 61961. The reversal of 61949 is 94916.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55225 + 6724 = 235^2 + 82^2 .

It is a cyclic number.

It is not a de Polignac number, because 61949 - 2⁴ = 61933 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30974 + 30975.

It is an arithmetic number, because the mean of its divisors is an integer number (30975).

2⁶¹⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

61949 is a deficient number, since it is larger than the sum of its proper divisors (1).

61949 is an equidigital number, since it uses as much as digits as its factorization.

61949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 29.

The square root of 61949 is about 248.8955604265. The cubic root of 61949 is about 39.5680608364.

The spelling of 61949 in words is "sixty-one thousand, nine hundred forty-nine".