109145460 has 48 divisors (see below), whose sum is σ = 309923712. Its totient is φ = 28694400.

The previous prime is 109145453. The next prime is 109145461. The reversal of 109145460 is 64541901.

It is a happy number.

It is a super-2 number, since 2×109145460² = 23825462877223200, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109145461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8551 + ... + 17070.

It is an arithmetic number, because the mean of its divisors is an integer number (6456744).

Almost surely, 2^109145460 is an apocalyptic number.

109145460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109145460 is an abundant number, since it is smaller than the sum of its proper divisors (200778252).

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

109145460 is a wasteful number, since it uses less digits than its factorization.

109145460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25704 (or 25702 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 109145460 is about 10447.2704569184. The cubic root of 109145460 is about 477.8980134067.

The spelling of 109145460 in words is "one hundred nine million, one hundred forty-five thousand, four hundred sixty".