61405082 has 4 divisors (see below), whose sum is σ = 92107626. Its totient is φ = 30702540.

The previous prime is 61405081. The next prime is 61405087. The reversal of 61405082 is 28050416.

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

It can be written as a sum of positive squares in only one way, i.e., 45010681 + 16394401 = 6709^2 + 4049^2 .

It is not an unprimeable number, because it can be changed into a prime (61405081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15351269 + ... + 15351272.

Almost surely, 2^61405082 is an apocalyptic number.

61405082 is a deficient number, since it is larger than the sum of its proper divisors (30702544).

61405082 is a wasteful number, since it uses less digits than its factorization.

61405082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30702543.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 61405082 is about 7836.1394831894. The cubic root of 61405082 is about 394.5191649552.

Adding to 61405082 its reverse (28050416), we get a palindrome (89455498).

The spelling of 61405082 in words is "sixty-one million, four hundred five thousand, eighty-two".