145577655 has 32 divisors (see below), whose sum is σ = 262019520. Its totient is φ = 77635584.

The previous prime is 145577633. The next prime is 145577671. The reversal of 145577655 is 556775541.

145577655 is a `hidden beast` number, since 14 + 5 + 577 + 65 + 5 = 666.

It is not a de Polignac number, because 145577655 - 2⁵ = 145577623 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 145577655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4279 + ... + 17591.

It is an arithmetic number, because the mean of its divisors is an integer number (8188110).

Almost surely, 2^145577655 is an apocalyptic number.

145577655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145577655 is a deficient number, since it is larger than the sum of its proper divisors (116441865).

145577655 is an frugal number, since it uses more digits than its factorization.

145577655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13339 (or 13321 counting only the distinct ones).

The product of its digits is 735000, while the sum is 45.

The square root of 145577655 is about 12065.5565557499. The cubic root of 145577655 is about 526.0555091366.

The spelling of 145577655 in words is "one hundred forty-five million, five hundred seventy-seven thousand, six hundred fifty-five".