94142731 has 2 divisors, whose sum is σ = 94142732. Its totient is φ = 94142730.

The previous prime is 94142707. The next prime is 94142747. The reversal of 94142731 is 13724149.

It is a strong prime.

It is an emirp because it is prime and its reverse (13724149) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 94142731 - 2⁷ = 94142603 is a prime.

It is a super-2 number, since 2×94142731² = 17725707600276722, which contains 22 as substring.

It is equal to p_5442943 and since 94142731 and 5442943 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 94142693 and 94142702.

It is not a weakly prime, because it can be changed into another prime (94142761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47071365 + 47071366.

It is an arithmetic number, because the mean of its divisors is an integer number (47071366).

Almost surely, 2^94142731 is an apocalyptic number.

94142731 is a deficient number, since it is larger than the sum of its proper divisors (1).

94142731 is an equidigital number, since it uses as much as digits as its factorization.

94142731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 94142731 is about 9702.7177120640. The cubic root of 94142731 is about 454.9136107773.

The spelling of 94142731 in words is "ninety-four million, one hundred forty-two thousand, seven hundred thirty-one".