145621108 has 12 divisors (see below), whose sum is σ = 255431232. Its totient is φ = 72640760.

The previous prime is 145621097. The next prime is 145621109. The reversal of 145621108 is 801126541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145621109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40510 + ... + 43957.

It is an arithmetic number, because the mean of its divisors is an integer number (21285936).

Almost surely, 2^145621108 is an apocalyptic number.

It is an amenable number.

145621108 is a deficient number, since it is larger than the sum of its proper divisors (109810124).

145621108 is a wasteful number, since it uses less digits than its factorization.

145621108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84902 (or 84900 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 145621108 is about 12067.3571257339. The cubic root of 145621108 is about 526.1078441282.

Adding to 145621108 its reverse (801126541), we get a palindrome (946747649).

The spelling of 145621108 in words is "one hundred forty-five million, six hundred twenty-one thousand, one hundred eight".