145280869454 has 16 divisors (see below), whose sum is σ = 249058867200. Its totient is φ = 62261742744.

The previous prime is 145280869441. The next prime is 145280869471. The reversal of 145280869454 is 454968082541.

It is a super-2 number, since 2×145280869454² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145280869454.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 649787 + ... + 844265.

It is an arithmetic number, because the mean of its divisors is an integer number (15566179200).

Almost surely, 2^145280869454 is an apocalyptic number.

145280869454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145280869454 is a deficient number, since it is larger than the sum of its proper divisors (103777997746).

145280869454 is a wasteful number, since it uses less digits than its factorization.

145280869454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247847.

The product of its (nonzero) digits is 11059200, while the sum is 56.

The spelling of 145280869454 in words is "one hundred forty-five billion, two hundred eighty million, eight hundred sixty-nine thousand, four hundred fifty-four".