145457743 has 2 divisors, whose sum is σ = 145457744. Its totient is φ = 145457742.

The previous prime is 145457717. The next prime is 145457779. The reversal of 145457743 is 347754541.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145457743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145457696 and 145457705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145457713) 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 as a sum of consecutive naturals, namely, 72728871 + 72728872.

It is an arithmetic number, because the mean of its divisors is an integer number (72728872).

Almost surely, 2^145457743 is an apocalyptic number.

145457743 is a deficient number, since it is larger than the sum of its proper divisors (1).

145457743 is an equidigital number, since it uses as much as digits as its factorization.

145457743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 235200, while the sum is 40.

The square root of 145457743 is about 12060.5863456135. The cubic root of 145457743 is about 525.9110325320.

The spelling of 145457743 in words is "one hundred forty-five million, four hundred fifty-seven thousand, seven hundred forty-three".