201533957 has 2 divisors, whose sum is σ = 201533958. Its totient is φ = 201533956.

The previous prime is 201533953. The next prime is 201533971. The reversal of 201533957 is 759335102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 170720356 + 30813601 = 13066^2 + 5551^2 .

It is a cyclic number.

It is not a de Polignac number, because 201533957 - 2² = 201533953 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201533951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100766978 + 100766979.

It is an arithmetic number, because the mean of its divisors is an integer number (100766979).

Almost surely, 2^201533957 is an apocalyptic number.

It is an amenable number.

201533957 is a deficient number, since it is larger than the sum of its proper divisors (1).

201533957 is an equidigital number, since it uses as much as digits as its factorization.

201533957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28350, while the sum is 35.

The square root of 201533957 is about 14196.2656005021. The cubic root of 201533957 is about 586.2948472927.

The spelling of 201533957 in words is "two hundred one million, five hundred thirty-three thousand, nine hundred fifty-seven".