145799707 has 4 divisors (see below), whose sum is σ = 147853296. Its totient is φ = 143746120.

The previous prime is 145799681. The next prime is 145799723. The reversal of 145799707 is 707997541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 707997541 = 12251 ⋅57791.

It is a cyclic number.

It is not a de Polignac number, because 145799707 - 2¹⁹ = 145275419 is a prime.

It is a super-2 number, since 2×145799707² = 42515109122571698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145799747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1026688 + ... + 1026829.

It is an arithmetic number, because the mean of its divisors is an integer number (36963324).

Almost surely, 2^145799707 is an apocalyptic number.

145799707 is a deficient number, since it is larger than the sum of its proper divisors (2053589).

145799707 is an equidigital number, since it uses as much as digits as its factorization.

145799707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053588.

The product of its (nonzero) digits is 555660, while the sum is 49.

The square root of 145799707 is about 12074.7549457536. The cubic root of 145799707 is about 526.3228403113.

The spelling of 145799707 in words is "one hundred forty-five million, seven hundred ninety-nine thousand, seven hundred seven".