109158445 has 16 divisors (see below), whose sum is σ = 151305408. Its totient is φ = 74717440.

The previous prime is 109158431. The next prime is 109158451. The reversal of 109158445 is 544851901.

It is not a de Polignac number, because 109158445 - 2¹³ = 109150253 is a prime.

It is a super-2 number, since 2×109158445² = 23831132229636050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57439 + ... + 59308.

It is an arithmetic number, because the mean of its divisors is an integer number (9456588).

Almost surely, 2^109158445 is an apocalyptic number.

It is an amenable number.

109158445 is a deficient number, since it is larger than the sum of its proper divisors (42146963).

109158445 is a wasteful number, since it uses less digits than its factorization.

109158445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116780.

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 109158445 is about 10447.8918926260. The cubic root of 109158445 is about 477.9169644458.

It can be divided in two parts, 1091 and 58445, that added together give a square (59536 = 244²).

The spelling of 109158445 in words is "one hundred nine million, one hundred fifty-eight thousand, four hundred forty-five".