145621612200 has 48 divisors (see below), whose sum is σ = 451426999680. Its totient is φ = 38832429760.

The previous prime is 145621612183. The next prime is 145621612211. The reversal of 145621612200 is 2216126541.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121350744 + ... + 121351943.

It is an arithmetic number, because the mean of its divisors is an integer number (9404729160).

Almost surely, 2^145621612200 is an apocalyptic number.

145621612200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145621612200 is an abundant number, since it is smaller than the sum of its proper divisors (305805387480).

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

145621612200 is a wasteful number, since it uses less digits than its factorization.

145621612200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242702706 (or 242702697 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 145621612200 its reverse (2216126541), we get a palindrome (147837738741).

The spelling of 145621612200 in words is "one hundred forty-five billion, six hundred twenty-one million, six hundred twelve thousand, two hundred".