61400283 has 24 divisors (see below), whose sum is σ = 97270272. Its totient is φ = 34335504.

The previous prime is 61400281. The next prime is 61400291. The reversal of 61400283 is 38200416.

It is a happy number.

It is not a de Polignac number, because 61400283 - 2¹ = 61400281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61400281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2466 + ... + 11352.

It is an arithmetic number, because the mean of its divisors is an integer number (4052928).

Almost surely, 2^61400283 is an apocalyptic number.

61400283 is a deficient number, since it is larger than the sum of its proper divisors (35869989).

61400283 is a wasteful number, since it uses less digits than its factorization.

61400283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8951 (or 8944 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 61400283 is about 7835.8332677514. The cubic root of 61400283 is about 394.5088870502.

Adding to 61400283 its reverse (38200416), we get a palindrome (99600699).

The spelling of 61400283 in words is "sixty-one million, four hundred thousand, two hundred eighty-three".