94145217 has 4 divisors (see below), whose sum is σ = 125526960. Its totient is φ = 62763476.

The previous prime is 94145213. The next prime is 94145239. The reversal of 94145217 is 71254149.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71254149 = 3 ⋅23751383.

It is a cyclic number.

It is not a de Polignac number, because 94145217 - 2² = 94145213 is a prime.

It is not an unprimeable number, because it can be changed into a prime (94145213) 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, 15690867 + ... + 15690872.

It is an arithmetic number, because the mean of its divisors is an integer number (31381740).

Almost surely, 2^94145217 is an apocalyptic number.

It is an amenable number.

94145217 is a deficient number, since it is larger than the sum of its proper divisors (31381743).

94145217 is a wasteful number, since it uses less digits than its factorization.

94145217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31381742.

The product of its digits is 10080, while the sum is 33.

The square root of 94145217 is about 9702.8458196552. The cubic root of 94145217 is about 454.9176149997.

The spelling of 94145217 in words is "ninety-four million, one hundred forty-five thousand, two hundred seventeen".