243157751342 has 16 divisors (see below), whose sum is σ = 407599247664. Its totient is φ = 107830488000.

The previous prime is 243157751339. The next prime is 243157751351.

It is a happy number.

243157751342 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 243157751293 and 243157751302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134787209 + ... + 134789012.

It is an arithmetic number, because the mean of its divisors is an integer number (25474952979).

Almost surely, 2^243157751342 is an apocalyptic number.

243157751342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243157751342 is a deficient number, since it is larger than the sum of its proper divisors (164441496322).

243157751342 is a wasteful number, since it uses less digits than its factorization.

243157751342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269576275.

The product of its digits is 705600, while the sum is 44.

It can be divided in two parts, 243157 and 751342, that added together give a palindrome (994499).

The spelling of 243157751342 in words is "two hundred forty-three billion, one hundred fifty-seven million, seven hundred fifty-one thousand, three hundred forty-two".