142097734 has 4 divisors (see below), whose sum is σ = 213146604. Its totient is φ = 71048866.

The previous prime is 142097719. The next prime is 142097737. The reversal of 142097734 is 437790241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 437790241 = 7 ⋅62541463.

It is a junction number, because it is equal to n+sod(n) for n = 142097693 and 142097702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142097737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35524432 + ... + 35524435.

It is an arithmetic number, because the mean of its divisors is an integer number (53286651).

Almost surely, 2^142097734 is an apocalyptic number.

142097734 is a deficient number, since it is larger than the sum of its proper divisors (71048870).

142097734 is an equidigital number, since it uses as much as digits as its factorization.

142097734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71048869.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 142097734 is about 11920.4754099826. The cubic root of 142097734 is about 521.8300092880.

The spelling of 142097734 in words is "one hundred forty-two million, ninety-seven thousand, seven hundred thirty-four".