145049233917 has 16 divisors (see below), whose sum is σ = 221047009920. Its totient is φ = 82877924352.

The previous prime is 145049233853. The next prime is 145049233921. The reversal of 145049233917 is 719332940541.

It is not a de Polignac number, because 145049233917 - 2⁶ = 145049233853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145049233937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59328 + ... + 541865.

It is an arithmetic number, because the mean of its divisors is an integer number (13815438120).

Almost surely, 2^145049233917 is an apocalyptic number.

It is an amenable number.

145049233917 is a deficient number, since it is larger than the sum of its proper divisors (75997776003).

145049233917 is a wasteful number, since it uses less digits than its factorization.

145049233917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612692.

The product of its (nonzero) digits is 816480, while the sum is 48.

The spelling of 145049233917 in words is "one hundred forty-five billion, forty-nine million, two hundred thirty-three thousand, nine hundred seventeen".