201954136 has 16 divisors (see below), whose sum is σ = 379684800. Its totient is φ = 100704864.

The previous prime is 201954131. The next prime is 201954143. The reversal of 201954136 is 631459102.

It is a junction number, because it is equal to n+sod(n) for n = 201954098 and 201954107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201954131) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 30856 + ... + 36823.

It is an arithmetic number, because the mean of its divisors is an integer number (23730300).

Almost surely, 2^201954136 is an apocalyptic number.

It is an amenable number.

201954136 is a deficient number, since it is larger than the sum of its proper divisors (177730664).

201954136 is a wasteful number, since it uses less digits than its factorization.

201954136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68058 (or 68054 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 201954136 is about 14211.0568220664. The cubic root of 201954136 is about 586.7020206541.

The spelling of 201954136 in words is "two hundred one million, nine hundred fifty-four thousand, one hundred thirty-six".