201537045 has 32 divisors (see below), whose sum is σ = 369853440. Its totient is φ = 104016960.

The previous prime is 201537043. The next prime is 201537053. The reversal of 201537045 is 540735102.

It is a happy number.

It is not a de Polignac number, because 201537045 - 2¹ = 201537043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201537043) 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 31 ways as a sum of consecutive naturals, for example, 19894 + ... + 28263.

It is an arithmetic number, because the mean of its divisors is an integer number (11557920).

Almost surely, 2^201537045 is an apocalyptic number.

It is an amenable number.

201537045 is a deficient number, since it is larger than the sum of its proper divisors (168316395).

201537045 is a wasteful number, since it uses less digits than its factorization.

201537045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48202 (or 48196 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 201537045 is about 14196.3743610825. The cubic root of 201537045 is about 586.2978417744.

It can be divided in two parts, 2015 and 37045, that added together give a triangular number (39060 = T₂₇₉).

The spelling of 201537045 in words is "two hundred one million, five hundred thirty-seven thousand, forty-five".