61374285 has 24 divisors (see below), whose sum is σ = 121580160. Its totient is φ = 28056672.

The previous prime is 61374263. The next prime is 61374289. The reversal of 61374285 is 58247316.

61374285 is a `hidden beast` number, since 6 + 1 + 374 + 285 = 666.

It is not a de Polignac number, because 61374285 - 2¹⁰ = 61373261 is a prime.

It is a super-2 number, since 2×61374285² = 7533605718522450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61374289) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97105 + ... + 97734.

It is an arithmetic number, because the mean of its divisors is an integer number (5065840).

Almost surely, 2^61374285 is an apocalyptic number.

It is an amenable number.

61374285 is a deficient number, since it is larger than the sum of its proper divisors (60205875).

61374285 is a wasteful number, since it uses less digits than its factorization.

61374285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194857 (or 194854 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 61374285 is about 7834.1741747296. The cubic root of 61374285 is about 394.4531984362.

The spelling of 61374285 in words is "sixty-one million, three hundred seventy-four thousand, two hundred eighty-five".