99331142 has 4 divisors (see below), whose sum is σ = 148996716. Its totient is φ = 49665570.

The previous prime is 99331123. The next prime is 99331157. The reversal of 99331142 is 24113399.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24113399 = 1693 ⋅14243.

It is a junction number, because it is equal to n+sod(n) for n = 99331099 and 99331108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24832784 + ... + 24832787.

It is an arithmetic number, because the mean of its divisors is an integer number (37249179).

Almost surely, 2^99331142 is an apocalyptic number.

99331142 is a deficient number, since it is larger than the sum of its proper divisors (49665574).

99331142 is a wasteful number, since it uses less digits than its factorization.

99331142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49665573.

The product of its digits is 5832, while the sum is 32.

The square root of 99331142 is about 9966.5009908192. The cubic root of 99331142 is about 463.1217129055.

The spelling of 99331142 in words is "ninety-nine million, three hundred thirty-one thousand, one hundred forty-two".