145709783 has 8 divisors (see below), whose sum is σ = 147312000. Its totient is φ = 144112608.

The previous prime is 145709741. The next prime is 145709797. The reversal of 145709783 is 387907541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145709783 - 2¹⁴ = 145693399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145709183) 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 7 ways as a sum of consecutive naturals, for example, 93293 + ... + 94841.

It is an arithmetic number, because the mean of its divisors is an integer number (18414000).

Almost surely, 2^145709783 is an apocalyptic number.

145709783 is a deficient number, since it is larger than the sum of its proper divisors (1602217).

145709783 is a wasteful number, since it uses less digits than its factorization.

145709783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2521.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 145709783 is about 12071.0307347799. The cubic root of 145709783 is about 526.2146124105.

The spelling of 145709783 in words is "one hundred forty-five million, seven hundred nine thousand, seven hundred eighty-three".