102771742 has 8 divisors (see below), whose sum is σ = 155684232. Its totient is φ = 50877000.

The previous prime is 102771689. The next prime is 102771743. The reversal of 102771742 is 247177201.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102771743) 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, 254184 + ... + 254587.

It is an arithmetic number, because the mean of its divisors is an integer number (19460529).

Almost surely, 2^102771742 is an apocalyptic number.

102771742 is a deficient number, since it is larger than the sum of its proper divisors (52912490).

102771742 is a wasteful number, since it uses less digits than its factorization.

102771742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508874.

The product of its (nonzero) digits is 5488, while the sum is 31.

The square root of 102771742 is about 10137.6398634002. The cubic root of 102771742 is about 468.4082899350.

The spelling of 102771742 in words is "one hundred two million, seven hundred seventy-one thousand, seven hundred forty-two".