142901217 has 6 divisors (see below), whose sum is σ = 206412882. Its totient is φ = 95267472.

The previous prime is 142901189. The next prime is 142901221. The reversal of 142901217 is 712109241.

142901217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 72743841 + 70157376 = 8529^2 + 8376^2 .

It is not a de Polignac number, because 142901217 - 2⁶ = 142901153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142901117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7938948 + ... + 7938965.

It is an arithmetic number, because the mean of its divisors is an integer number (34402147).

Almost surely, 2^142901217 is an apocalyptic number.

It is an amenable number.

142901217 is a deficient number, since it is larger than the sum of its proper divisors (63511665).

142901217 is a wasteful number, since it uses less digits than its factorization.

142901217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15877919 (or 15877916 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 142901217 is about 11954.1297048342. The cubic root of 142901217 is about 522.8117133012.

The spelling of 142901217 in words is "one hundred forty-two million, nine hundred one thousand, two hundred seventeen".