61466149 has 4 divisors (see below), whose sum is σ = 63448960. Its totient is φ = 59483340.

The previous prime is 61466137. The next prime is 61466183. The reversal of 61466149 is 94166416.

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 61466149 - 2⁷ = 61466021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61466549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 991359 + ... + 991420.

It is an arithmetic number, because the mean of its divisors is an integer number (15862240).

Almost surely, 2^61466149 is an apocalyptic number.

It is an amenable number.

61466149 is a deficient number, since it is larger than the sum of its proper divisors (1982811).

61466149 is a wasteful number, since it uses less digits than its factorization.

61466149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982810.

The product of its digits is 31104, while the sum is 37.

The square root of 61466149 is about 7840.0350126769. The cubic root of 61466149 is about 394.6499039700.

The spelling of 61466149 in words is "sixty-one million, four hundred sixty-six thousand, one hundred forty-nine".