61214544 has 30 divisors (see below), whose sum is σ = 171316106. Its totient is φ = 20404800.

The previous prime is 61214521. The next prime is 61214557. The reversal of 61214544 is 44541216.

61214544 is a `hidden beast` number, since 612 + 1 + 4 + 5 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 60840000 + 374544 = 7800^2 + 612^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

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, 212407 + ... + 212694.

Almost surely, 2^61214544 is an apocalyptic number.

It is an amenable number.

61214544 is an abundant number, since it is smaller than the sum of its proper divisors (110101562).

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

61214544 is a wasteful number, since it uses less digits than its factorization.

61214544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425115 (or 425106 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 61214544 is about 7823.9723925893. The cubic root of 61214544 is about 394.1106820551.

The spelling of 61214544 in words is "sixty-one million, two hundred fourteen thousand, five hundred forty-four".