191458942 has 16 divisors (see below), whose sum is σ = 295392240. Its totient is φ = 93002688.

The previous prime is 191458921. The next prime is 191458997. The reversal of 191458942 is 249854191.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61909 + ... + 64927.

It is an arithmetic number, because the mean of its divisors is an integer number (18462015).

Almost surely, 2^191458942 is an apocalyptic number.

191458942 is a deficient number, since it is larger than the sum of its proper divisors (103933298).

191458942 is a wasteful number, since it uses less digits than its factorization.

191458942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3915.

The product of its digits is 103680, while the sum is 43.

The square root of 191458942 is about 13836.8689377330. The cubic root of 191458942 is about 576.3574150532.

The spelling of 191458942 in words is "one hundred ninety-one million, four hundred fifty-eight thousand, nine hundred forty-two".