145418743 has 4 divisors (see below), whose sum is σ = 147589240. Its totient is φ = 143248248.

The previous prime is 145418717. The next prime is 145418797. The reversal of 145418743 is 347814541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 347814541 = 37 ⋅9400393.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145418743 is a prime.

It is a super-2 number, since 2×145418743² = 42293221631400098, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145418543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1085148 + ... + 1085281.

It is an arithmetic number, because the mean of its divisors is an integer number (36897310).

Almost surely, 2^145418743 is an apocalyptic number.

145418743 is a deficient number, since it is larger than the sum of its proper divisors (2170497).

145418743 is an equidigital number, since it uses as much as digits as its factorization.

145418743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2170496.

The product of its digits is 53760, while the sum is 37.

The square root of 145418743 is about 12058.9694004090. The cubic root of 145418743 is about 525.8640260654.

The spelling of 145418743 in words is "one hundred forty-five million, four hundred eighteen thousand, seven hundred forty-three".