61142670 has 24 divisors (see below), whose sum is σ = 158971176. Its totient is φ = 16304688.

The previous prime is 61142647. The next prime is 61142681. The reversal of 61142670 is 7624116.

61142670 is a `hidden beast` number, since 611 + 42 + 6 + 7 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 339592 + ... + 339771.

It is an arithmetic number, because the mean of its divisors is an integer number (6623799).

Almost surely, 2^61142670 is an apocalyptic number.

61142670 is an abundant number, since it is smaller than the sum of its proper divisors (97828506).

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

61142670 is a wasteful number, since it uses less digits than its factorization.

61142670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679376 (or 679373 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 61142670 is about 7819.3778524893. The cubic root of 61142670 is about 393.9563755629.

Adding to 61142670 its reverse (7624116), we get a palindrome (68766786).

The spelling of 61142670 in words is "sixty-one million, one hundred forty-two thousand, six hundred seventy".