61302949 has 4 divisors (see below), whose sum is σ = 64529440. Its totient is φ = 58076460.

The previous prime is 61302937. The next prime is 61302953. The reversal of 61302949 is 94920316.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61302949 - 2²³ = 52914341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61302919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1613217 + ... + 1613254.

It is an arithmetic number, because the mean of its divisors is an integer number (16132360).

Almost surely, 2^61302949 is an apocalyptic number.

It is an amenable number.

61302949 is a deficient number, since it is larger than the sum of its proper divisors (3226491).

61302949 is a wasteful number, since it uses less digits than its factorization.

61302949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3226490.

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

The square root of 61302949 is about 7829.6199780066. The cubic root of 61302949 is about 394.3003134378.

The spelling of 61302949 in words is "sixty-one million, three hundred two thousand, nine hundred forty-nine".