61570132 has 24 divisors (see below), whose sum is σ = 120040200. Its totient is φ = 27436416.

The previous prime is 61570121. The next prime is 61570169. The reversal of 61570132 is 23107516.

It can be written as a sum of positive squares in 4 ways, for example, as 18352656 + 43217476 = 4284^2 + 6574^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61570097 and 61570106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18907 + ... + 21922.

It is an arithmetic number, because the mean of its divisors is an integer number (5001675).

Almost surely, 2^61570132 is an apocalyptic number.

It is an amenable number.

61570132 is a deficient number, since it is larger than the sum of its proper divisors (58470068).

61570132 is a wasteful number, since it uses less digits than its factorization.

61570132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40875 (or 40873 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 61570132 is about 7846.6637496455. The cubic root of 61570132 is about 394.8723232067.

Adding to 61570132 its reverse (23107516), we get a palindrome (84677648).

The spelling of 61570132 in words is "sixty-one million, five hundred seventy thousand, one hundred thirty-two".