1061001901 has 2 divisors, whose sum is σ = 1061001902. Its totient is φ = 1061001900.

The previous prime is 1061001889. The next prime is 1061001911. The reversal of 1061001901 is 1091001601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 737937225 + 323064676 = 27165^2 + 17974^2 .

It is a cyclic number.

It is not a de Polignac number, because 1061001901 - 2¹¹ = 1060999853 is a prime.

It is a super-2 number, since 2×1061001901² = 2251450067851227602, which contains 22 as substring.

1061001901 is a strobogrammatic number because it is the same when read upside-down.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1061001911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530500950 + 530500951.

It is an arithmetic number, because the mean of its divisors is an integer number (530500951).

Almost surely, 2^1061001901 is an apocalyptic number.

It is an amenable number.

1061001901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1061001901 is an equidigital number, since it uses as much as digits as its factorization.

1061001901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 19.

The square root of 1061001901 is about 32573.0241304058. The cubic root of 1061001901 is about 1019.9339637499.

The spelling of 1061001901 in words is "one billion, sixty-one million, one thousand, nine hundred one".