140218774 has 4 divisors (see below), whose sum is σ = 210328164. Its totient is φ = 70109386.

The previous prime is 140218753. The next prime is 140218801. The reversal of 140218774 is 477812041.

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

It is a super-2 number, since 2×140218774² = 39322609164126152, 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, 35054692 + ... + 35054695.

It is an arithmetic number, because the mean of its divisors is an integer number (52582041).

Almost surely, 2^140218774 is an apocalyptic number.

140218774 is a deficient number, since it is larger than the sum of its proper divisors (70109390).

140218774 is an equidigital number, since it uses as much as digits as its factorization.

140218774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70109389.

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 140218774 is about 11841.4008461837. The cubic root of 140218774 is about 519.5197414935.

The spelling of 140218774 in words is "one hundred forty million, two hundred eighteen thousand, seven hundred seventy-four".