61140523 has 2 divisors, whose sum is σ = 61140524. Its totient is φ = 61140522.

The previous prime is 61140473. The next prime is 61140623. The reversal of 61140523 is 32504116.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61140523 - 2²¹ = 59043371 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61140494 and 61140503.

It is not a weakly prime, because it can be changed into another prime (61140623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30570261 + 30570262.

It is an arithmetic number, because the mean of its divisors is an integer number (30570262).

Almost surely, 2^61140523 is an apocalyptic number.

61140523 is a deficient number, since it is larger than the sum of its proper divisors (1).

61140523 is an equidigital number, since it uses as much as digits as its factorization.

61140523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 61140523 is about 7819.2405641469. The cubic root of 61140523 is about 393.9517643029.

Adding to 61140523 its reverse (32504116), we get a palindrome (93644639).

The spelling of 61140523 in words is "sixty-one million, one hundred forty thousand, five hundred twenty-three".