145551403 has 16 divisors (see below), whose sum is σ = 151232544. Its totient is φ = 140025600.

The previous prime is 145551397. The next prime is 145551437. The reversal of 145551403 is 304155541.

It is a cyclic number.

It is not a de Polignac number, because 145551403 - 2²¹ = 143454251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145551443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 927001 + ... + 927157.

It is an arithmetic number, because the mean of its divisors is an integer number (9452034).

Almost surely, 2^145551403 is an apocalyptic number.

145551403 is a deficient number, since it is larger than the sum of its proper divisors (5681141).

145551403 is a wasteful number, since it uses less digits than its factorization.

145551403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 145551403 is about 12064.4686165616. The cubic root of 145551403 is about 526.0238860613.

The spelling of 145551403 in words is "one hundred forty-five million, five hundred fifty-one thousand, four hundred three".