61275146 has 4 divisors (see below), whose sum is σ = 91912722. Its totient is φ = 30637572.

The previous prime is 61275143. The next prime is 61275161. The reversal of 61275146 is 64157216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 61230625 + 44521 = 7825^2 + 211^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61275143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15318785 + ... + 15318788.

Almost surely, 2^61275146 is an apocalyptic number.

61275146 is a deficient number, since it is larger than the sum of its proper divisors (30637576).

61275146 is a wasteful number, since it uses less digits than its factorization.

61275146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30637575.

The product of its digits is 10080, while the sum is 32.

The square root of 61275146 is about 7827.8442754056. The cubic root of 61275146 is about 394.2406948304.

The spelling of 61275146 in words is "sixty-one million, two hundred seventy-five thousand, one hundred forty-six".