91018126 has 4 divisors (see below), whose sum is σ = 136527192. Its totient is φ = 45509062.

The previous prime is 91018121. The next prime is 91018127. The reversal of 91018126 is 62181019.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 91018094 and 91018103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91018121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22754530 + ... + 22754533.

It is an arithmetic number, because the mean of its divisors is an integer number (34131798).

Almost surely, 2^91018126 is an apocalyptic number.

91018126 is a deficient number, since it is larger than the sum of its proper divisors (45509066).

91018126 is a wasteful number, since it uses less digits than its factorization.

91018126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45509065.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 91018126 is about 9540.3420274118. The cubic root of 91018126 is about 449.8240068990.

The spelling of 91018126 in words is "ninety-one million, eighteen thousand, one hundred twenty-six".