145403140020 has 48 divisors (see below), whose sum is σ = 421167720960. Its totient is φ = 37437129856.

The previous prime is 145403140007. The next prime is 145403140027. The reversal of 145403140020 is 20041304541.

It is a super-2 number, since 2×145403140020² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145403140027) 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, 41780772 + ... + 41784251.

It is an arithmetic number, because the mean of its divisors is an integer number (8774327520).

Almost surely, 2^145403140020 is an apocalyptic number.

145403140020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145403140020 is an abundant number, since it is smaller than the sum of its proper divisors (275764580940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145403140020 is a wasteful number, since it uses less digits than its factorization.

145403140020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83565064 (or 83565062 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 145403140020 its reverse (20041304541), we get a palindrome (165444444561).

The spelling of 145403140020 in words is "one hundred forty-five billion, four hundred three million, one hundred forty thousand, twenty".