145412412420 has 48 divisors (see below), whose sum is σ = 444168825408. Its totient is φ = 35251493760.

The previous prime is 145412412367. The next prime is 145412412427. The reversal of 145412412420 is 24214214541.

It is a super-2 number, since 2×145412412420² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (145412412427) 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, 110160259 + ... + 110161578.

It is an arithmetic number, because the mean of its divisors is an integer number (9253517196).

Almost surely, 2^145412412420 is an apocalyptic number.

145412412420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145412412420 is an abundant number, since it is smaller than the sum of its proper divisors (298756412988).

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

145412412420 is a wasteful number, since it uses less digits than its factorization.

145412412420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220321860 (or 220321858 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

Adding to 145412412420 its reverse (24214214541), we get a palindrome (169626626961).

The spelling of 145412412420 in words is "one hundred forty-five billion, four hundred twelve million, four hundred twelve thousand, four hundred twenty".