145541747 has 8 divisors (see below), whose sum is σ = 157133760. Its totient is φ = 134006400.

The previous prime is 145541741. The next prime is 145541761. The reversal of 145541747 is 747145541.

145541747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 145541747 - 2⁸ = 145541491 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145541747.

It is not an unprimeable number, because it can be changed into a prime (145541741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8747 + ... + 19172.

It is an arithmetic number, because the mean of its divisors is an integer number (19641720).

Almost surely, 2^145541747 is an apocalyptic number.

145541747 is a deficient number, since it is larger than the sum of its proper divisors (11592013).

145541747 is a wasteful number, since it uses less digits than its factorization.

145541747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28333.

The product of its digits is 78400, while the sum is 38.

The square root of 145541747 is about 12064.0684265301. The cubic root of 145541747 is about 526.0122535180.

The spelling of 145541747 in words is "one hundred forty-five million, five hundred forty-one thousand, seven hundred forty-seven".