201531148 has 36 divisors (see below), whose sum is σ = 436462320. Its totient is φ = 79724736.

The previous prime is 201531137. The next prime is 201531151. The reversal of 201531148 is 841135102.

It is a super-2 number, since 2×201531148² = 81229607228395808, which contains 22 as substring.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16563 + ... + 26026.

Almost surely, 2^201531148 is an apocalyptic number.

201531148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

201531148 is an abundant number, since it is smaller than the sum of its proper divisors (234931172).

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

201531148 is a wasteful number, since it uses less digits than its factorization.

201531148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42626 (or 42611 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 201531148 is about 14196.1666656883. The cubic root of 201531148 is about 586.2921233351.

The spelling of 201531148 in words is "two hundred one million, five hundred thirty-one thousand, one hundred forty-eight".