140144774 has 16 divisors (see below), whose sum is σ = 262089216. Its totient is φ = 54601800.

The previous prime is 140144759. The next prime is 140144801. The reversal of 140144774 is 477441041.

It is a super-2 number, since 2×140144774² = 39281115359022152, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 140144774.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 454862 + ... + 455169.

It is an arithmetic number, because the mean of its divisors is an integer number (16380576).

Almost surely, 2^140144774 is an apocalyptic number.

140144774 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

140144774 is a deficient number, since it is larger than the sum of its proper divisors (121944442).

140144774 is a wasteful number, since it uses less digits than its factorization.

140144774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910051.

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 140144774 is about 11838.2758035113. The cubic root of 140144774 is about 519.4283337960.

The spelling of 140144774 in words is "one hundred forty million, one hundred forty-four thousand, seven hundred seventy-four".