145423803 has 16 divisors (see below), whose sum is σ = 221771520. Its totient is φ = 83034336.

The previous prime is 145423793. The next prime is 145423823. The reversal of 145423803 is 308324541.

It is not a de Polignac number, because 145423803 - 2⁴ = 145423787 is a prime.

It is a super-2 number, since 2×145423803² = 42296164957965618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145423823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41776 + ... + 45122.

It is an arithmetic number, because the mean of its divisors is an integer number (13860720).

Almost surely, 2^145423803 is an apocalyptic number.

145423803 is a deficient number, since it is larger than the sum of its proper divisors (76347717).

145423803 is a wasteful number, since it uses less digits than its factorization.

145423803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5426.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 145423803 is about 12059.1792009241. The cubic root of 145423803 is about 525.8701253276.

The spelling of 145423803 in words is "one hundred forty-five million, four hundred twenty-three thousand, eight hundred three".