107561551 has 4 divisors (see below), whose sum is σ = 111270600. Its totient is φ = 103852504.

The previous prime is 107561513. The next prime is 107561557. The reversal of 107561551 is 155165701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 155165701 = 131 ⋅1184471.

It is a cyclic number.

It is not a de Polignac number, because 107561551 - 2¹⁵ = 107528783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107561557) 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 3 ways as a sum of consecutive naturals, for example, 1854481 + ... + 1854538.

It is an arithmetic number, because the mean of its divisors is an integer number (27817650).

Almost surely, 2^107561551 is an apocalyptic number.

107561551 is a deficient number, since it is larger than the sum of its proper divisors (3709049).

107561551 is an equidigital number, since it uses as much as digits as its factorization.

107561551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3709048.

The product of its (nonzero) digits is 5250, while the sum is 31.

The square root of 107561551 is about 10371.1885046990. The cubic root of 107561551 is about 475.5750022759.

It can be divided in two parts, 1075 and 61551, that added together give a palindrome (62626).

The spelling of 107561551 in words is "one hundred seven million, five hundred sixty-one thousand, five hundred fifty-one".