142973734 has 4 divisors (see below), whose sum is σ = 214460604. Its totient is φ = 71486866.

The previous prime is 142973731. The next prime is 142973737. The reversal of 142973734 is 437379241.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (142973731) and next prime (142973737).

It is a super-2 number, since 2×142973734² = 40882977227805512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142973731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35743432 + ... + 35743435.

It is an arithmetic number, because the mean of its divisors is an integer number (53615151).

Almost surely, 2^142973734 is an apocalyptic number.

142973734 is a deficient number, since it is larger than the sum of its proper divisors (71486870).

142973734 is an equidigital number, since it uses as much as digits as its factorization.

142973734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71486869.

The product of its digits is 127008, while the sum is 40.

The square root of 142973734 is about 11957.1624560345. The cubic root of 142973734 is about 522.9001341150.

The spelling of 142973734 in words is "one hundred forty-two million, nine hundred seventy-three thousand, seven hundred thirty-four".