102770742 has 8 divisors (see below), whose sum is σ = 205541496. Its totient is φ = 34256912.

The previous prime is 102770741. The next prime is 102770749. The reversal of 102770742 is 247077201.

It is a sphenic number, since it is the product of 3 distinct primes.

102770742 is an admirable number.

It is a super-2 number, since 2×102770742² = 21123650822461128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102770741) 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, 8564223 + ... + 8564234.

It is an arithmetic number, because the mean of its divisors is an integer number (25692687).

Almost surely, 2^102770742 is an apocalyptic number.

102770742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

102770742 is a wasteful number, since it uses less digits than its factorization.

102770742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17128462.

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 102770742 is about 10137.5905421357. The cubic root of 102770742 is about 468.4067706789.

The spelling of 102770742 in words is "one hundred two million, seven hundred seventy thousand, seven hundred forty-two".