140437144075346 has 4 divisors (see below), whose sum is σ = 210655716113022. Its totient is φ = 70218572037672.

The previous prime is 140437144075301. The next prime is 140437144075367. The reversal of 140437144075346 is 643570441734041.

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

It can be written as a sum of positive squares in only one way, i.e., 97988518177225 + 42448625898121 = 9898915^2 + 6515261^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35109286018835 + ... + 35109286018838.

Almost surely, 2^{140437144075346} is an apocalyptic number.

140437144075346 is a deficient number, since it is larger than the sum of its proper divisors (70218572037676).

140437144075346 is an equidigital number, since it uses as much as digits as its factorization.

140437144075346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70218572037675.

The product of its (nonzero) digits is 13547520, while the sum is 53.

The spelling of 140437144075346 in words is "one hundred forty trillion, four hundred thirty-seven billion, one hundred forty-four million, seventy-five thousand, three hundred forty-six".