61149 has 16 divisors (see below), whose sum is σ = 95040. Its totient is φ = 34560.

The previous prime is 61141. The next prime is 61151. The reversal of 61149 is 94116.

It is not a de Polignac number, because 61149 - 2³ = 61141 is a prime.

It is a Curzon number.

It is a nialpdrome in base 16.

It is a zygodrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 507 + ... + 615.

It is an arithmetic number, because the mean of its divisors is an integer number (5940).

2⁶¹¹⁴⁹ is an apocalyptic number.

It is an amenable number.

61149 is a deficient number, since it is larger than the sum of its proper divisors (33891).

61149 is a wasteful number, since it uses less digits than its factorization.

61149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140.

The product of its digits is 216, while the sum is 21.

The square root of 61149 is about 247.2832384130. The cubic root of 61149 is about 39.3969970312.

It can be divided in two parts, 61 and 149, that added together give a triangular number (210 = T₂₀).

The spelling of 61149 in words is "sixty-one thousand, one hundred forty-nine".