654211145 has 32 divisors (see below), whose sum is σ = 935020800. Its totient is φ = 429924096.

The previous prime is 654211141. The next prime is 654211157. The reversal of 654211145 is 541112456.

It is not a de Polignac number, because 654211145 - 2² = 654211141 is a prime.

It is a super-2 number, since 2×654211145² = 855984444484422050, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (654211141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138767 + ... + 143403.

It is an arithmetic number, because the mean of its divisors is an integer number (29219400).

Almost surely, 2^654211145 is an apocalyptic number.

It is an amenable number.

654211145 is a deficient number, since it is larger than the sum of its proper divisors (280809655).

654211145 is a wasteful number, since it uses less digits than its factorization.

654211145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4817.

The product of its digits is 4800, while the sum is 29.

The square root of 654211145 is about 25577.5515833709. The cubic root of 654211145 is about 868.1057765895.

It can be divided in two parts, 65421 and 1145, that added together give a palindrome (66566).

The spelling of 654211145 in words is "six hundred fifty-four million, two hundred eleven thousand, one hundred forty-five".