145695645 has 16 divisors (see below), whose sum is σ = 259014720. Its totient is φ = 77704272.

The previous prime is 145695617. The next prime is 145695647. The reversal of 145695645 is 546596541.

It is not a de Polignac number, because 145695645 - 2¹² = 145691549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 145695645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145695647) 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, 539479 + ... + 539748.

It is an arithmetic number, because the mean of its divisors is an integer number (16188420).

Almost surely, 2^145695645 is an apocalyptic number.

145695645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145695645 is a deficient number, since it is larger than the sum of its proper divisors (113319075).

145695645 is a wasteful number, since it uses less digits than its factorization.

145695645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079241 (or 1079235 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 145695645 is about 12070.4451036405. The cubic root of 145695645 is about 526.1975925905.

The spelling of 145695645 in words is "one hundred forty-five million, six hundred ninety-five thousand, six hundred forty-five".