145545747 has 8 divisors (see below), whose sum is σ = 195982800. Its totient is φ = 96069600.

The previous prime is 145545737. The next prime is 145545761. The reversal of 145545747 is 747545541.

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

It is not a de Polignac number, because 145545747 - 2⁴ = 145545731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145545699 and 145545708.

It is not an unprimeable number, because it can be changed into a prime (145545707) 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 in 7 ways as a sum of consecutive naturals, for example, 239872 + ... + 240477.

It is an arithmetic number, because the mean of its divisors is an integer number (24497850).

Almost surely, 2^145545747 is an apocalyptic number.

145545747 is a deficient number, since it is larger than the sum of its proper divisors (50437053).

145545747 is a wasteful number, since it uses less digits than its factorization.

145545747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480453.

The product of its digits is 392000, while the sum is 42.

The square root of 145545747 is about 12064.2342069441. The cubic root of 145545747 is about 526.0170723639.

It can be divided in two parts, 14554 and 5747, that added together give a triangular number (20301 = T₂₀₁).

The spelling of 145545747 in words is "one hundred forty-five million, five hundred forty-five thousand, seven hundred forty-seven".