94427139 has 4 divisors (see below), whose sum is σ = 125902856. Its totient is φ = 62951424.

The previous prime is 94427117. The next prime is 94427149. The reversal of 94427139 is 93172449.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93172449 = 3 ⋅31057483.

It is not a de Polignac number, because 94427139 - 2¹⁵ = 94394371 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 94427097 and 94427106.

It is not an unprimeable number, because it can be changed into a prime (94427149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15737854 + ... + 15737859.

It is an arithmetic number, because the mean of its divisors is an integer number (31475714).

Almost surely, 2^94427139 is an apocalyptic number.

94427139 is a deficient number, since it is larger than the sum of its proper divisors (31475717).

94427139 is a wasteful number, since it uses less digits than its factorization.

94427139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31475716.

The product of its digits is 54432, while the sum is 39.

The square root of 94427139 is about 9717.3627595145. The cubic root of 94427139 is about 455.3712527678.

The spelling of 94427139 in words is "ninety-four million, four hundred twenty-seven thousand, one hundred thirty-nine".