140564426 has 4 divisors (see below), whose sum is σ = 210846642. Its totient is φ = 70282212.

The previous prime is 140564407. The next prime is 140564467. The reversal of 140564426 is 624465041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 624465041 = 1021 ⋅611621.

It can be written as a sum of positive squares in only one way, i.e., 139122025 + 1442401 = 11795^2 + 1201^2 .

It is a junction number, because it is equal to n+sod(n) for n = 140564392 and 140564401.

It is an unprimeable number.

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, 35141105 + ... + 35141108.

Almost surely, 2^140564426 is an apocalyptic number.

140564426 is a deficient number, since it is larger than the sum of its proper divisors (70282216).

140564426 is an equidigital number, since it uses as much as digits as its factorization.

140564426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70282215.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 140564426 is about 11855.9869264435. The cubic root of 140564426 is about 519.9462789671.

The spelling of 140564426 in words is "one hundred forty million, five hundred sixty-four thousand, four hundred twenty-six".