145621110 has 16 divisors (see below), whose sum is σ = 349490736. Its totient is φ = 38832288.

The previous prime is 145621109. The next prime is 145621123. The reversal of 145621110 is 11126541.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2426989 + ... + 2427048.

It is an arithmetic number, because the mean of its divisors is an integer number (21843171).

Almost surely, 2^145621110 is an apocalyptic number.

145621110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145621110 is an abundant number, since it is smaller than the sum of its proper divisors (203869626).

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

145621110 is a wasteful number, since it uses less digits than its factorization.

145621110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4854047.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 145621110 is about 12067.3572086021. The cubic root of 145621110 is about 526.1078465368.

Adding to 145621110 its reverse (11126541), we get a palindrome (156747651).

The spelling of 145621110 in words is "one hundred forty-five million, six hundred twenty-one thousand, one hundred ten".