145889017275 has 24 divisors (see below), whose sum is σ = 241263659824. Its totient is φ = 77787964800.

The previous prime is 145889017223. The next prime is 145889017303. The reversal of 145889017275 is 572710988541.

It is a happy number.

It is not a de Polignac number, because 145889017275 - 2¹¹ = 145889015227 is a prime.

It is a super-2 number, since 2×145889017275² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59697 + ... + 543453.

Almost surely, 2^145889017275 is an apocalyptic number.

145889017275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145889017275 is a deficient number, since it is larger than the sum of its proper divisors (95374642549).

145889017275 is a wasteful number, since it uses less digits than its factorization.

145889017275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487791 (or 487786 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 57.

The spelling of 145889017275 in words is "one hundred forty-five billion, eight hundred eighty-nine million, seventeen thousand, two hundred seventy-five".