109037557 has 4 divisors (see below), whose sum is σ = 111984556. Its totient is φ = 106090560.

The previous prime is 109037543. The next prime is 109037563. The reversal of 109037557 is 755730901.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 755730901 = 41 ⋅18432461.

It can be written as a sum of positive squares in 2 ways, for example, as 89756676 + 19280881 = 9474^2 + 4391^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109037557 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 2946961 = 109037557 / (1 + 0 + 9 + 0 + 3 + 7 + 5 + 5 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109037527) 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, 1473444 + ... + 1473517.

It is an arithmetic number, because the mean of its divisors is an integer number (27996139).

Almost surely, 2^109037557 is an apocalyptic number.

It is an amenable number.

109037557 is a deficient number, since it is larger than the sum of its proper divisors (2946999).

109037557 is an equidigital number, since it uses as much as digits as its factorization.

109037557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946998.

The product of its (nonzero) digits is 33075, while the sum is 37.

The square root of 109037557 is about 10442.1050080910. The cubic root of 109037557 is about 477.7404755305.

The spelling of 109037557 in words is "one hundred nine million, thirty-seven thousand, five hundred fifty-seven".