199148541 has 32 divisors (see below), whose sum is σ = 283668480. Its totient is φ = 124094016.

The previous prime is 199148533. The next prime is 199148549. The reversal of 199148541 is 145841991.

It is an interprime number because it is at equal distance from previous prime (199148533) and next prime (199148549).

It is not a de Polignac number, because 199148541 - 2³ = 199148533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 199148493 and 199148502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199148549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 307480 + ... + 308126.

It is an arithmetic number, because the mean of its divisors is an integer number (8864640).

Almost surely, 2^199148541 is an apocalyptic number.

It is an amenable number.

199148541 is a deficient number, since it is larger than the sum of its proper divisors (84519939).

199148541 is a wasteful number, since it uses less digits than its factorization.

199148541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793.

The product of its digits is 51840, while the sum is 42.

The square root of 199148541 is about 14111.9998937075. Note that the first 3 decimals coincide. The cubic root of 199148541 is about 583.9724734086.

The spelling of 199148541 in words is "one hundred ninety-nine million, one hundred forty-eight thousand, five hundred forty-one".