145121303430 has 96 divisors (see below), whose sum is σ = 401865688224. Its totient is φ = 37653071616.

The previous prime is 145121303399. The next prime is 145121303449. The reversal of 145121303430 is 34303121541.

It is a happy number.

145121303430 is a `hidden beast` number, since 14 + 5 + 1 + 213 + 0 + 3 + 430 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 145121303394 and 145121303403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 717127 + ... + 896946.

It is an arithmetic number, because the mean of its divisors is an integer number (4186100919).

Almost surely, 2^145121303430 is an apocalyptic number.

145121303430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145121303430 is an abundant number, since it is smaller than the sum of its proper divisors (256744384794).

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

145121303430 is a wasteful number, since it uses less digits than its factorization.

145121303430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614132 (or 1614120 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 145121303430 its reverse (34303121541), we get a palindrome (179424424971).

The spelling of 145121303430 in words is "one hundred forty-five billion, one hundred twenty-one million, three hundred three thousand, four hundred thirty".