142894157 has 4 divisors (see below), whose sum is σ = 163307616. Its totient is φ = 122480700.

The previous prime is 142894153. The next prime is 142894181. The reversal of 142894157 is 751498241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142894157 - 2² = 142894153 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142894153) 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, 10206719 + ... + 10206732.

It is an arithmetic number, because the mean of its divisors is an integer number (40826904).

Almost surely, 2^142894157 is an apocalyptic number.

It is an amenable number.

142894157 is a deficient number, since it is larger than the sum of its proper divisors (20413459).

142894157 is an equidigital number, since it uses as much as digits as its factorization.

142894157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20413458.

The product of its digits is 80640, while the sum is 41.

The square root of 142894157 is about 11953.8344057461. The cubic root of 142894157 is about 522.8031033640.

The spelling of 142894157 in words is "one hundred forty-two million, eight hundred ninety-four thousand, one hundred fifty-seven".