145209655 has 8 divisors (see below), whose sum is σ = 174459600. Its totient is φ = 116029056.

The previous prime is 145209653. The next prime is 145209661. The reversal of 145209655 is 556902541.

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 145209655 - 2¹ = 145209653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145209653) 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, 12610 + ... + 21199.

It is an arithmetic number, because the mean of its divisors is an integer number (21807450).

Almost surely, 2^145209655 is an apocalyptic number.

145209655 is a deficient number, since it is larger than the sum of its proper divisors (29249945).

145209655 is an equidigital number, since it uses as much as digits as its factorization.

145209655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34673.

The product of its (nonzero) digits is 54000, while the sum is 37.

The square root of 145209655 is about 12050.2968843095. The cubic root of 145209655 is about 525.6118701309.

The spelling of 145209655 in words is "one hundred forty-five million, two hundred nine thousand, six hundred fifty-five".