61163351 has 2 divisors, whose sum is σ = 61163352. Its totient is φ = 61163350.

The previous prime is 61163321. The next prime is 61163359. The reversal of 61163351 is 15336116.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61163351 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61163351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61163359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30581675 + 30581676.

It is an arithmetic number, because the mean of its divisors is an integer number (30581676).

Almost surely, 2^61163351 is an apocalyptic number.

61163351 is a deficient number, since it is larger than the sum of its proper divisors (1).

61163351 is an equidigital number, since it uses as much as digits as its factorization.

61163351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 26.

The square root of 61163351 is about 7820.7001604716. The cubic root of 61163351 is about 394.0007880459. Note that the first 3 decimals are identical.

Adding to 61163351 its reverse (15336116), we get a palindrome (76499467).

The spelling of 61163351 in words is "sixty-one million, one hundred sixty-three thousand, three hundred fifty-one".