140742478 has 8 divisors (see below), whose sum is σ = 214264872. Its totient is φ = 69320856.

The previous prime is 140742461. The next prime is 140742499. The reversal of 140742478 is 874247041.

140742478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×140742478² = 39616890227160968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525025 + ... + 525292.

It is an arithmetic number, because the mean of its divisors is an integer number (26783109).

Almost surely, 2^140742478 is an apocalyptic number.

140742478 is a deficient number, since it is larger than the sum of its proper divisors (73522394).

140742478 is a wasteful number, since it uses less digits than its factorization.

140742478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050386.

The product of its (nonzero) digits is 50176, while the sum is 37.

The square root of 140742478 is about 11863.4934989656. The cubic root of 140742478 is about 520.1657238055.

The spelling of 140742478 in words is "one hundred forty million, seven hundred forty-two thousand, four hundred seventy-eight".