145752747 has 16 divisors (see below), whose sum is σ = 235164672. Its totient is φ = 78387840.

The previous prime is 145752721. The next prime is 145752751. The reversal of 145752747 is 747257541.

It is not a de Polignac number, because 145752747 - 2¹¹ = 145750699 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145752699 and 145752708.

It is not an unprimeable number, because it can be changed into a prime (145752707) 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, 203779 + ... + 204492.

It is an arithmetic number, because the mean of its divisors is an integer number (14697792).

Almost surely, 2^145752747 is an apocalyptic number.

145752747 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

145752747 is a deficient number, since it is larger than the sum of its proper divisors (89411925).

145752747 is a wasteful number, since it uses less digits than its factorization.

145752747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408298.

The product of its digits is 274400, while the sum is 42.

The square root of 145752747 is about 12072.8102362292. The cubic root of 145752747 is about 526.2663272242.

The spelling of 145752747 in words is "one hundred forty-five million, seven hundred fifty-two thousand, seven hundred forty-seven".