145321447003 has 12 divisors (see below), whose sum is σ = 150432388288. Its totient is φ = 140238065520.

The previous prime is 145321447001. The next prime is 145321447031. The reversal of 145321447003 is 300744123541.

It is not a de Polignac number, because 145321447003 - 2¹ = 145321447001 is a prime.

It is a super-2 number, since 2×145321447003² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145321447003.

It is not an unprimeable number, because it can be changed into a prime (145321447001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3977125 + ... + 4013497.

Almost surely, 2^145321447003 is an apocalyptic number.

145321447003 is a deficient number, since it is larger than the sum of its proper divisors (5110941285).

145321447003 is an frugal number, since it uses more digits than its factorization.

145321447003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37122 (or 36763 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The spelling of 145321447003 in words is "one hundred forty-five billion, three hundred twenty-one million, four hundred forty-seven thousand, three".