201250649 has 2 divisors, whose sum is σ = 201250650. Its totient is φ = 201250648.

The previous prime is 201250619. The next prime is 201250657. The reversal of 201250649 is 946052102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158256400 + 42994249 = 12580^2 + 6557^2 .

It is a cyclic number.

It is not a de Polignac number, because 201250649 - 2⁸ = 201250393 is a prime.

It is not a weakly prime, because it can be changed into another prime (201250619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100625324 + 100625325.

It is an arithmetic number, because the mean of its divisors is an integer number (100625325).

Almost surely, 2^201250649 is an apocalyptic number.

It is an amenable number.

201250649 is a deficient number, since it is larger than the sum of its proper divisors (1).

201250649 is an equidigital number, since it uses as much as digits as its factorization.

201250649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 201250649 is about 14186.2838333370. The cubic root of 201250649 is about 586.0199888735.

The spelling of 201250649 in words is "two hundred one million, two hundred fifty thousand, six hundred forty-nine".