145465902649 has 8 divisors (see below), whose sum is σ = 153133788672. Its totient is φ = 137909956800.

The previous prime is 145465902623. The next prime is 145465902653. The reversal of 145465902649 is 946209564541.

145465902649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145465902649 - 2³¹ = 143318419001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145465902649.

It is not an unprimeable number, because it can be changed into a prime (145465900649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27982377 + ... + 27987574.

It is an arithmetic number, because the mean of its divisors is an integer number (19141723584).

Almost surely, 2^145465902649 is an apocalyptic number.

It is an amenable number.

145465902649 is a deficient number, since it is larger than the sum of its proper divisors (7667886023).

145465902649 is a wasteful number, since it uses less digits than its factorization.

145465902649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55970087.

The product of its (nonzero) digits is 9331200, while the sum is 55.

It can be divided in two parts, 14546 and 5902649, that added together give a palindrome (5917195).

The spelling of 145465902649 in words is "one hundred forty-five billion, four hundred sixty-five million, nine hundred two thousand, six hundred forty-nine".