93142381 has 2 divisors, whose sum is σ = 93142382. Its totient is φ = 93142380.

The previous prime is 93142367. The next prime is 93142409. The reversal of 93142381 is 18324139.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93122500 + 19881 = 9650^2 + 141^2 .

It is a cyclic number.

It is not a de Polignac number, because 93142381 - 2¹⁷ = 93011309 is a prime.

It is a super-2 number, since 2×93142381² = 17351006276698322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (93142331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46571190 + 46571191.

It is an arithmetic number, because the mean of its divisors is an integer number (46571191).

Almost surely, 2^93142381 is an apocalyptic number.

It is an amenable number.

93142381 is a deficient number, since it is larger than the sum of its proper divisors (1).

93142381 is an equidigital number, since it uses as much as digits as its factorization.

93142381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 31.

The square root of 93142381 is about 9651.0300486528. The cubic root of 93142381 is about 453.2965828892.

The spelling of 93142381 in words is "ninety-three million, one hundred forty-two thousand, three hundred eighty-one".