140561774 has 4 divisors (see below), whose sum is σ = 210842664. Its totient is φ = 70280886.

The previous prime is 140561761. The next prime is 140561789. The reversal of 140561774 is 477165041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 477165041 = 17041 ⋅28001.

It is a super-2 number, since 2×140561774² = 39515224620054152, which contains 22 as substring.

It is a congruent number.

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, 35140442 + ... + 35140445.

It is an arithmetic number, because the mean of its divisors is an integer number (52710666).

Almost surely, 2^140561774 is an apocalyptic number.

140561774 is a deficient number, since it is larger than the sum of its proper divisors (70280890).

140561774 is an equidigital number, since it uses as much as digits as its factorization.

140561774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70280889.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 140561774 is about 11855.8750836874. The cubic root of 140561774 is about 519.9430090401.

The spelling of 140561774 in words is "one hundred forty million, five hundred sixty-one thousand, seven hundred seventy-four".