94521381 has 8 divisors (see below), whose sum is σ = 126174144. Its totient is φ = 62941440.

The previous prime is 94521373. The next prime is 94521407. The reversal of 94521381 is 18312549.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 94521381 - 2³ = 94521373 is a prime.

It is a super-2 number, since 2×94521381² = 17868582932294322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94521331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15100 + ... + 20421.

It is an arithmetic number, because the mean of its divisors is an integer number (15771768).

Almost surely, 2^94521381 is an apocalyptic number.

It is an amenable number.

94521381 is a deficient number, since it is larger than the sum of its proper divisors (31652763).

94521381 is a wasteful number, since it uses less digits than its factorization.

94521381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36411.

The product of its digits is 8640, while the sum is 33.

The square root of 94521381 is about 9722.2107053900. The cubic root of 94521381 is about 455.5226952062.

The spelling of 94521381 in words is "ninety-four million, five hundred twenty-one thousand, three hundred eighty-one".