1445085511 has 2 divisors, whose sum is σ = 1445085512. Its totient is φ = 1445085510.

The previous prime is 1445085503. The next prime is 1445085529. The reversal of 1445085511 is 1155805441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1445085511 - 2³ = 1445085503 is a prime.

It is a super-2 number, since 2×1445085511² = 4176544268204262242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1445085541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722542755 + 722542756.

It is an arithmetic number, because the mean of its divisors is an integer number (722542756).

Almost surely, 2^1445085511 is an apocalyptic number.

1445085511 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445085511 is an equidigital number, since it uses as much as digits as its factorization.

1445085511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16000, while the sum is 34.

The square root of 1445085511 is about 38014.2803562030. The cubic root of 1445085511 is about 1130.5710197766.

The spelling of 1445085511 in words is "one billion, four hundred forty-five million, eighty-five thousand, five hundred eleven".