145251455 has 8 divisors (see below), whose sum is σ = 179012832. Its totient is φ = 113060448.

The previous prime is 145251439. The next prime is 145251487. The reversal of 145251455 is 554152541.

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 145251455 - 2⁴ = 145251439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392387 + ... + 392756.

It is an arithmetic number, because the mean of its divisors is an integer number (22376604).

Almost surely, 2^145251455 is an apocalyptic number.

145251455 is a deficient number, since it is larger than the sum of its proper divisors (33761377).

145251455 is an equidigital number, since it uses as much as digits as its factorization.

145251455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785185.

The product of its digits is 20000, while the sum is 32.

The square root of 145251455 is about 12052.0311566142. The cubic root of 145251455 is about 525.6622994414.

The spelling of 145251455 in words is "one hundred forty-five million, two hundred fifty-one thousand, four hundred fifty-five".