61423357 has 2 divisors, whose sum is σ = 61423358. Its totient is φ = 61423356.

The previous prime is 61423331. The next prime is 61423459. The reversal of 61423357 is 75332416.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55562116 + 5861241 = 7454^2 + 2421^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61423357 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61423757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30711678 + 30711679.

It is an arithmetic number, because the mean of its divisors is an integer number (30711679).

Almost surely, 2^61423357 is an apocalyptic number.

It is an amenable number.

61423357 is a deficient number, since it is larger than the sum of its proper divisors (1).

61423357 is an equidigital number, since it uses as much as digits as its factorization.

61423357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 31.

The square root of 61423357 is about 7837.3054680802. The cubic root of 61423357 is about 394.5582991895.

The spelling of 61423357 in words is "sixty-one million, four hundred twenty-three thousand, three hundred fifty-seven".