905102142 has 64 divisors (see below), whose sum is σ = 2129670144. Its totient is φ = 251055360.

The previous prime is 905102137. The next prime is 905102161. The reversal of 905102142 is 241201509.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 382828 + ... + 385184.

It is an arithmetic number, because the mean of its divisors is an integer number (33276096).

Almost surely, 2^905102142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 905102142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1064835072).

905102142 is an abundant number, since it is smaller than the sum of its proper divisors (1224568002).

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

905102142 is a wasteful number, since it uses less digits than its factorization.

905102142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2633.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 905102142 is about 30084.9155225671. The cubic root of 905102142 is about 967.3104158839.

The spelling of 905102142 in words is "nine hundred five million, one hundred two thousand, one hundred forty-two".