145716172903 has 24 divisors (see below), whose sum is σ = 171715587120. Its totient is φ = 123274811520.

The previous prime is 145716172879. The next prime is 145716172967. The reversal of 145716172903 is 309271617541.

It is not a de Polignac number, because 145716172903 - 2³³ = 137126238311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145716172993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4298203 + ... + 4331971.

It is an arithmetic number, because the mean of its divisors is an integer number (7154816130).

Almost surely, 2^145716172903 is an apocalyptic number.

145716172903 is a deficient number, since it is larger than the sum of its proper divisors (25999414217).

145716172903 is a wasteful number, since it uses less digits than its factorization.

145716172903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34927 (or 34920 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 46.

The spelling of 145716172903 in words is "one hundred forty-five billion, seven hundred sixteen million, one hundred seventy-two thousand, nine hundred three".