140684098 has 4 divisors (see below), whose sum is σ = 211026150. Its totient is φ = 70342048.

The previous prime is 140684083. The next prime is 140684099. The reversal of 140684098 is 890486041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 890486041 = 1031 ⋅863711.

It can be written as a sum of positive squares in only one way, i.e., 76090729 + 64593369 = 8723^2 + 8037^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 140684098.

It is not an unprimeable number, because it can be changed into a prime (140684099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35171023 + ... + 35171026.

Almost surely, 2^140684098 is an apocalyptic number.

140684098 is a deficient number, since it is larger than the sum of its proper divisors (70342052).

140684098 is an equidigital number, since it uses as much as digits as its factorization.

140684098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70342051.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 140684098 is about 11861.0327543600. The cubic root of 140684098 is about 520.0937922533.

The spelling of 140684098 in words is "one hundred forty million, six hundred eighty-four thousand, ninety-eight".