145109693887 has 8 divisors (see below), whose sum is σ = 146295097200. Its totient is φ = 143927111040.

The previous prime is 145109693873. The next prime is 145109693917. The reversal of 145109693887 is 788396901541.

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 145109693887 - 2¹⁵ = 145109661119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145109693867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601738 + ... + 807655.

It is an arithmetic number, because the mean of its divisors is an integer number (18286887150).

Almost surely, 2^145109693887 is an apocalyptic number.

145109693887 is a deficient number, since it is larger than the sum of its proper divisors (1185403313).

145109693887 is a wasteful number, since it uses less digits than its factorization.

145109693887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410233.

The product of its (nonzero) digits is 13063680, while the sum is 61.

The spelling of 145109693887 in words is "one hundred forty-five billion, one hundred nine million, six hundred ninety-three thousand, eight hundred eighty-seven".