201154020 has 48 divisors (see below), whose sum is σ = 566516160. Its totient is φ = 53328256.

The previous prime is 201154001. The next prime is 201154039. The reversal of 201154020 is 20451102.

It is an interprime number because it is at equal distance from previous prime (201154001) and next prime (201154039).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 691 + ... + 20069.

It is an arithmetic number, because the mean of its divisors is an integer number (11802420).

Almost surely, 2^201154020 is an apocalyptic number.

201154020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201154020 is an abundant number, since it is smaller than the sum of its proper divisors (365362140).

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

201154020 is a wasteful number, since it uses less digits than its factorization.

201154020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19564 (or 19562 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 201154020 is about 14182.8777051768. The cubic root of 201154020 is about 585.9261828143.

The spelling of 201154020 in words is "two hundred one million, one hundred fifty-four thousand, twenty".