145312100 has 36 divisors (see below), whose sum is σ = 315854784. Its totient is φ = 58027680.

The previous prime is 145312067. The next prime is 145312157. The reversal of 145312100 is 1213541.

It is a super-2 number, since 2×145312100² = 42231212812820000, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 105617 + ... + 106983.

It is an arithmetic number, because the mean of its divisors is an integer number (8773744).

Almost surely, 2^145312100 is an apocalyptic number.

145312100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145312100 is an abundant number, since it is smaller than the sum of its proper divisors (170542684).

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

145312100 is a wasteful number, since it uses less digits than its factorization.

145312100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444 (or 2437 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 145312100 is about 12054.5468600027. The cubic root of 145312100 is about 525.7354469692.

Adding to 145312100 its reverse (1213541), we get a palindrome (146525641).

The spelling of 145312100 in words is "one hundred forty-five million, three hundred twelve thousand, one hundred".