201061457 has 2 divisors, whose sum is σ = 201061458. Its totient is φ = 201061456.

The previous prime is 201061433. The next prime is 201061463. The reversal of 201061457 is 754160102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118178641 + 82882816 = 10871^2 + 9104^2 .

It is a cyclic number.

It is not a de Polignac number, because 201061457 - 2¹² = 201057361 is a prime.

It is a Chen prime.

It is equal to p_11134493 and since 201061457 and 11134493 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (201061657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100530728 + 100530729.

It is an arithmetic number, because the mean of its divisors is an integer number (100530729).

Almost surely, 2^201061457 is an apocalyptic number.

It is an amenable number.

201061457 is a deficient number, since it is larger than the sum of its proper divisors (1).

201061457 is an equidigital number, since it uses as much as digits as its factorization.

201061457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 201061457 is about 14179.6141343832. The cubic root of 201061457 is about 585.8362957942.

The spelling of 201061457 in words is "two hundred one million, sixty-one thousand, four hundred fifty-seven".