61898150 has 12 divisors (see below), whose sum is σ = 115130652. Its totient is φ = 24759240.

The previous prime is 61898141. The next prime is 61898167. The reversal of 61898150 is 5189816.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 618932 + ... + 619031.

It is an arithmetic number, because the mean of its divisors is an integer number (9594221).

Almost surely, 2^61898150 is an apocalyptic number.

61898150 is a deficient number, since it is larger than the sum of its proper divisors (53232502).

61898150 is a wasteful number, since it uses less digits than its factorization.

61898150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237975 (or 1237970 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 61898150 is about 7867.5377342597. The cubic root of 61898150 is about 395.5723157003.

The spelling of 61898150 in words is "sixty-one million, eight hundred ninety-eight thousand, one hundred fifty".