145535403 has 32 divisors (see below), whose sum is σ = 214643520. Its totient is φ = 87160320.

The previous prime is 145535387. The next prime is 145535407. The reversal of 145535403 is 304535541.

145535403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145535403 - 2⁴ = 145535387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145535407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 373933 + ... + 374321.

It is an arithmetic number, because the mean of its divisors is an integer number (6707610).

Almost surely, 2^145535403 is an apocalyptic number.

145535403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

145535403 is a deficient number, since it is larger than the sum of its proper divisors (69108117).

145535403 is a wasteful number, since it uses less digits than its factorization.

145535403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 145535403 is about 12063.8054941217. The cubic root of 145535403 is about 526.0046106474.

The spelling of 145535403 in words is "one hundred forty-five million, five hundred thirty-five thousand, four hundred three".