142634193 has 16 divisors (see below), whose sum is σ = 211416576. Its totient is φ = 84942720.

The previous prime is 142634117. The next prime is 142634213. The reversal of 142634193 is 391436241.

It is not a de Polignac number, because 142634193 - 2²¹ = 140537041 is a prime.

It is a super-2 number, since 2×142634193² = 40689026025522498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142614193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57780 + ... + 60197.

It is an arithmetic number, because the mean of its divisors is an integer number (13213536).

Almost surely, 2^142634193 is an apocalyptic number.

142634193 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

142634193 is a deficient number, since it is larger than the sum of its proper divisors (68782383).

142634193 is a wasteful number, since it uses less digits than its factorization.

142634193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118024.

The product of its digits is 15552, while the sum is 33.

The square root of 142634193 is about 11942.9557899207. The cubic root of 142634193 is about 522.4858697521.

The spelling of 142634193 in words is "one hundred forty-two million, six hundred thirty-four thousand, one hundred ninety-three".