61265149 has 4 divisors (see below), whose sum is σ = 66834720. Its totient is φ = 55695580.

The previous prime is 61265143. The next prime is 61265173. The reversal of 61265149 is 94156216.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61265149 - 2¹¹ = 61263101 is a prime.

It is a super-3 number, since 3×61265149³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61265143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2784769 + ... + 2784790.

It is an arithmetic number, because the mean of its divisors is an integer number (16708680).

Almost surely, 2^61265149 is an apocalyptic number.

It is an amenable number.

61265149 is a deficient number, since it is larger than the sum of its proper divisors (5569571).

61265149 is a wasteful number, since it uses less digits than its factorization.

61265149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5569570.

The product of its digits is 12960, while the sum is 34.

The square root of 61265149 is about 7827.2056955212. The cubic root of 61265149 is about 394.2192536271.

The spelling of 61265149 in words is "sixty-one million, two hundred sixty-five thousand, one hundred forty-nine".