61294949 has 2 divisors, whose sum is σ = 61294950. Its totient is φ = 61294948.

The previous prime is 61294943. The next prime is 61294957. The reversal of 61294949 is 94949216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52780225 + 8514724 = 7265^2 + 2918^2 .

It is a cyclic number.

It is not a de Polignac number, because 61294949 - 2⁸ = 61294693 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61294943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30647474 + 30647475.

It is an arithmetic number, because the mean of its divisors is an integer number (30647475).

Almost surely, 2^61294949 is an apocalyptic number.

It is an amenable number.

61294949 is a deficient number, since it is larger than the sum of its proper divisors (1).

61294949 is an equidigital number, since it uses as much as digits as its factorization.

61294949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 44.

The square root of 61294949 is about 7829.1090808597. The cubic root of 61294949 is about 394.2831607027.

The spelling of 61294949 in words is "sixty-one million, two hundred ninety-four thousand, nine hundred forty-nine".