61149950 has 48 divisors (see below), whose sum is σ = 117046080. Its totient is φ = 23761920.

The previous prime is 61149931. The next prime is 61149953. The reversal of 61149950 is 5994116.

It is a self number, because there is not a number n which added to its sum of digits gives 61149950.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61149953) 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, 446282 + ... + 446418.

It is an arithmetic number, because the mean of its divisors is an integer number (2438460).

Almost surely, 2^61149950 is an apocalyptic number.

61149950 is a deficient number, since it is larger than the sum of its proper divisors (55896130).

61149950 is a wasteful number, since it uses less digits than its factorization.

61149950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 61149950 is about 7819.8433488146. The cubic root of 61149950 is about 393.9720105174.

The spelling of 61149950 in words is "sixty-one million, one hundred forty-nine thousand, nine hundred fifty".