61189150 has 24 divisors (see below), whose sum is σ = 124159464. Its totient is φ = 22250400.

The previous prime is 61189099. The next prime is 61189151. The reversal of 61189150 is 5198116.

It is a super-2 number, since 2×61189150² = 7488224155445000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61189151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55077 + ... + 56176.

It is an arithmetic number, because the mean of its divisors is an integer number (5173311).

Almost surely, 2^61189150 is an apocalyptic number.

61189150 is an abundant number, since it is smaller than the sum of its proper divisors (62970314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61189150 is a wasteful number, since it uses less digits than its factorization.

61189150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111276 (or 111271 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 31.

The square root of 61189150 is about 7822.3493913274. The cubic root of 61189150 is about 394.0561774106.

The spelling of 61189150 in words is "sixty-one million, one hundred eighty-nine thousand, one hundred fifty".