145923743 has 16 divisors (see below), whose sum is σ = 175883520. Its totient is φ = 118267776.

The previous prime is 145923731. The next prime is 145923749. The reversal of 145923743 is 347329541.

It is a cyclic number.

It is not a de Polignac number, because 145923743 - 2¹⁰ = 145922719 is a prime.

It is a super-2 number, since 2×145923743² = 42587477542260098, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145923697 and 145923706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145923749) 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, 129380 + ... + 130502.

It is an arithmetic number, because the mean of its divisors is an integer number (10992720).

Almost surely, 2^145923743 is an apocalyptic number.

145923743 is a deficient number, since it is larger than the sum of its proper divisors (29959777).

145923743 is a wasteful number, since it uses less digits than its factorization.

145923743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126.

The product of its digits is 90720, while the sum is 38.

The square root of 145923743 is about 12079.8900243338. The cubic root of 145923743 is about 526.4720506612.

The spelling of 145923743 in words is "one hundred forty-five million, nine hundred twenty-three thousand, seven hundred forty-three".