61234949 has 4 divisors (see below), whose sum is σ = 61444236. Its totient is φ = 61025664.

The previous prime is 61234933. The next prime is 61234973. The reversal of 61234949 is 94943216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59985025 + 1249924 = 7745^2 + 1118^2 .

It is a cyclic number.

It is not a de Polignac number, because 61234949 - 2⁴ = 61234933 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61234919) 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, 104204 + ... + 104789.

It is an arithmetic number, because the mean of its divisors is an integer number (15361059).

Almost surely, 2^61234949 is an apocalyptic number.

It is an amenable number.

61234949 is a deficient number, since it is larger than the sum of its proper divisors (209287).

61234949 is a wasteful number, since it uses less digits than its factorization.

61234949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209286.

The product of its digits is 46656, while the sum is 38.

The square root of 61234949 is about 7825.2762890520. The cubic root of 61234949 is about 394.1544675924.

The spelling of 61234949 in words is "sixty-one million, two hundred thirty-four thousand, nine hundred forty-nine".