102774091 has 16 divisors (see below), whose sum is σ = 119059200. Its totient is φ = 86899680.

The previous prime is 102774079. The next prime is 102774107. The reversal of 102774091 is 190477201.

It is not a de Polignac number, because 102774091 - 2¹⁵ = 102741323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102774031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219840 + ... + 220306.

It is an arithmetic number, because the mean of its divisors is an integer number (7441200).

Almost surely, 2^102774091 is an apocalyptic number.

102774091 is a deficient number, since it is larger than the sum of its proper divisors (16285109).

102774091 is a wasteful number, since it uses less digits than its factorization.

102774091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 102774091 is about 10137.7557181064. The cubic root of 102774091 is about 468.4118586290.

The spelling of 102774091 in words is "one hundred two million, seven hundred seventy-four thousand, ninety-one".