91142802 has 12 divisors (see below), whose sum is σ = 197476110. Its totient is φ = 30380928.

The previous prime is 91142773. The next prime is 91142809. The reversal of 91142802 is 20824119.

It can be written as a sum of positive squares in only one way, i.e., 90611361 + 531441 = 9519^2 + 729^2 .

It is a super-2 number, since 2×91142802² = 16614020712822408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (91142809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2531727 + ... + 2531762.

Almost surely, 2^91142802 is an apocalyptic number.

91142802 is an abundant number, since it is smaller than the sum of its proper divisors (106333308).

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

91142802 is a wasteful number, since it uses less digits than its factorization.

91142802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5063497 (or 5063494 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 91142802 is about 9546.8739386251. The cubic root of 91142802 is about 450.0293017957.

The spelling of 91142802 in words is "ninety-one million, one hundred forty-two thousand, eight hundred two".