142771902 has 64 divisors (see below), whose sum is σ = 366750720. Its totient is φ = 36013824.

The previous prime is 142771897. The next prime is 142771907. The reversal of 142771902 is 209177241.

It is an interprime number because it is at equal distance from previous prime (142771897) and next prime (142771907).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142771907) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6874 + ... + 18242.

It is an arithmetic number, because the mean of its divisors is an integer number (5730480).

Almost surely, 2^142771902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142771902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183375360).

142771902 is an abundant number, since it is smaller than the sum of its proper divisors (223978818).

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

142771902 is a wasteful number, since it uses less digits than its factorization.

142771902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11417.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 142771902 is about 11948.7196803674. The cubic root of 142771902 is about 522.6539637695.

The spelling of 142771902 in words is "one hundred forty-two million, seven hundred seventy-one thousand, nine hundred two".