94121531 has 4 divisors (see below), whose sum is σ = 107567472. Its totient is φ = 80675592.

The previous prime is 94121483. The next prime is 94121551. The reversal of 94121531 is 13512149.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13512149 = 7 ⋅1930307.

It is a cyclic number.

It is not a de Polignac number, because 94121531 - 2¹⁴ = 94105147 is a prime.

It is a super-2 number, since 2×94121531² = 17717725195567922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 94121531.

It is not an unprimeable number, because it can be changed into a prime (94121551) 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, 6722960 + ... + 6722973.

It is an arithmetic number, because the mean of its divisors is an integer number (26891868).

Almost surely, 2^94121531 is an apocalyptic number.

94121531 is a deficient number, since it is larger than the sum of its proper divisors (13445941).

94121531 is a wasteful number, since it uses less digits than its factorization.

94121531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13445940.

The product of its digits is 1080, while the sum is 26.

The square root of 94121531 is about 9701.6251731347. The cubic root of 94121531 is about 454.8794608843.

The spelling of 94121531 in words is "ninety-four million, one hundred twenty-one thousand, five hundred thirty-one".