145197767975 has 96 divisors (see below), whose sum is σ = 211430217600. Its totient is φ = 97929216000.

The previous prime is 145197767951. The next prime is 145197767999. The reversal of 145197767975 is 579767791541.

It is an interprime number because it is at equal distance from previous prime (145197767951) and next prime (145197767999).

It is not a de Polignac number, because 145197767975 - 2¹⁰ = 145197766951 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 45076865 + ... + 45080085.

It is an arithmetic number, because the mean of its divisors is an integer number (2202398100).

Almost surely, 2^145197767975 is an apocalyptic number.

145197767975 is a deficient number, since it is larger than the sum of its proper divisors (66232449625).

145197767975 is a wasteful number, since it uses less digits than its factorization.

145197767975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3501 (or 3496 counting only the distinct ones).

The product of its digits is 116688600, while the sum is 68.

The spelling of 145197767975 in words is "one hundred forty-five billion, one hundred ninety-seven million, seven hundred sixty-seven thousand, nine hundred seventy-five".