201111148 has 12 divisors (see below), whose sum is σ = 402222352. Its totient is φ = 86190480.

The previous prime is 201111107. The next prime is 201111161. The reversal of 201111148 is 841111102.

201111148 is an admirable 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, 3591243 + ... + 3591298.

Almost surely, 2^201111148 is an apocalyptic number.

201111148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

201111148 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201111148 is a wasteful number, since it uses less digits than its factorization.

201111148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7182552 (or 7182550 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

The square root of 201111148 is about 14181.3662247331. The cubic root of 201111148 is about 585.8845536651.

The spelling of 201111148 in words is "two hundred one million, one hundred eleven thousand, one hundred forty-eight".