1455005081 has 16 divisors (see below), whose sum is σ = 1518426000. Its totient is φ = 1392534528.

The previous prime is 1455005053. The next prime is 1455005087. The reversal of 1455005081 is 1805005541.

It can be written as a sum of positive squares in 8 ways, for example, as 154753600 + 1300251481 = 12440^2 + 36059^2 .

It is not a de Polignac number, because 1455005081 - 2¹⁸ = 1454742937 is a prime.

It is a super-2 number, since 2×1455005081² = 4234079571471633122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1455005087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2357885 + ... + 2358501.

It is an arithmetic number, because the mean of its divisors is an integer number (94901625).

Almost surely, 2^1455005081 is an apocalyptic number.

It is an amenable number.

1455005081 is a deficient number, since it is larger than the sum of its proper divisors (63420919).

1455005081 is a wasteful number, since it uses less digits than its factorization.

1455005081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228.

The product of its (nonzero) digits is 4000, while the sum is 29.

The square root of 1455005081 is about 38144.5288475294. The cubic root of 1455005081 is about 1133.1520008520.

The spelling of 1455005081 in words is "one billion, four hundred fifty-five million, five thousand, eighty-one".