91125142 has 8 divisors (see below), whose sum is σ = 138223800. Its totient is φ = 45050544.

The previous prime is 91125131. The next prime is 91125169. The reversal of 91125142 is 24152119.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255792 + ... + 256147.

It is an arithmetic number, because the mean of its divisors is an integer number (17277975).

Almost surely, 2^91125142 is an apocalyptic number.

91125142 is a deficient number, since it is larger than the sum of its proper divisors (47098658).

91125142 is a wasteful number, since it uses less digits than its factorization.

91125142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512030.

The product of its digits is 720, while the sum is 25.

The square root of 91125142 is about 9545.9489837313. The cubic root of 91125142 is about 450.0002337447. Note that the first 3 decimals are identical.

The spelling of 91125142 in words is "ninety-one million, one hundred twenty-five thousand, one hundred forty-two".