61140339 has 40 divisors (see below), whose sum is σ = 101585792. Its totient is φ = 36391680.

The previous prime is 61140311. The next prime is 61140341. The reversal of 61140339 is 93304116.

61140339 is a `hidden beast` number, since 611 + 40 + 3 + 3 + 9 = 666.

It is not a de Polignac number, because 61140339 - 2¹¹ = 61138291 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61140349) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 31707 + ... + 33579.

Almost surely, 2^61140339 is an apocalyptic number.

61140339 is a deficient number, since it is larger than the sum of its proper divisors (40445453).

61140339 is a wasteful number, since it uses less digits than its factorization.

61140339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1929 (or 1920 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 61140339 is about 7819.2287982895. The cubic root of 61140339 is about 393.9513691084.

The spelling of 61140339 in words is "sixty-one million, one hundred forty thousand, three hundred thirty-nine".