201554013 has 4 divisors (see below), whose sum is σ = 268738688. Its totient is φ = 134369340.

The previous prime is 201554009. The next prime is 201554021. The reversal of 201554013 is 310455102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 201554013 - 2² = 201554009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201554053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33592333 + ... + 33592338.

It is an arithmetic number, because the mean of its divisors is an integer number (67184672).

Almost surely, 2^201554013 is an apocalyptic number.

It is an amenable number.

201554013 is a deficient number, since it is larger than the sum of its proper divisors (67184675).

201554013 is an equidigital number, since it uses as much as digits as its factorization.

201554013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67184674.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 201554013 is about 14196.9719658806. The cubic root of 201554013 is about 586.3142953625.

The spelling of 201554013 in words is "two hundred one million, five hundred fifty-four thousand, thirteen".