61160531 has 2 divisors, whose sum is σ = 61160532. Its totient is φ = 61160530.

The previous prime is 61160497. The next prime is 61160549. The reversal of 61160531 is 13506116.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61160531 is a prime.

It is a super-3 number, since 3×61160531³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 61160497 and 61160506.

It is not a weakly prime, because it can be changed into another prime (61160581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30580265 + 30580266.

It is an arithmetic number, because the mean of its divisors is an integer number (30580266).

Almost surely, 2^61160531 is an apocalyptic number.

61160531 is a deficient number, since it is larger than the sum of its proper divisors (1).

61160531 is an equidigital number, since it uses as much as digits as its factorization.

61160531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 61160531 is about 7820.5198676303. The cubic root of 61160531 is about 393.9947326806.

Adding to 61160531 its reverse (13506116), we get a palindrome (74666647).

The spelling of 61160531 in words is "sixty-one million, one hundred sixty thousand, five hundred thirty-one".