94151421 has 72 divisors (see below), whose sum is σ = 173571840. Its totient is φ = 48117888.

The previous prime is 94151417. The next prime is 94151437. The reversal of 94151421 is 12415149.

94151421 is a `hidden beast` number, since 94 + 151 + 421 = 666.

It is not a de Polignac number, because 94151421 - 2² = 94151417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94151411) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 393820 + ... + 394058.

It is an arithmetic number, because the mean of its divisors is an integer number (2410720).

Almost surely, 2^94151421 is an apocalyptic number.

94151421 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

It is an amenable number.

94151421 is a deficient number, since it is larger than the sum of its proper divisors (79420419).

94151421 is a wasteful number, since it uses less digits than its factorization.

94151421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315 (or 299 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 94151421 is about 9703.1655144082. The cubic root of 94151421 is about 454.9276075303.

The spelling of 94151421 in words is "ninety-four million, one hundred fifty-one thousand, four hundred twenty-one".