140124442 has 8 divisors (see below), whose sum is σ = 213632532. Its totient is φ = 68913600.

The previous prime is 140124431. The next prime is 140124451. The reversal of 140124442 is 244421041.

It can be written as a sum of positive squares in 2 ways, for example, as 132457081 + 7667361 = 11509^2 + 2769^2 .

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

It is a super-2 number, since 2×140124442² = 39269718491622728, which contains 22 as substring.

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, 574159 + ... + 574402.

Almost surely, 2^140124442 is an apocalyptic number.

140124442 is a deficient number, since it is larger than the sum of its proper divisors (73508090).

140124442 is a wasteful number, since it uses less digits than its factorization.

140124442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148624.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 140124442 is about 11837.4170324442. The cubic root of 140124442 is about 519.4032132787.

Adding to 140124442 its reverse (244421041), we get a palindrome (384545483).

The spelling of 140124442 in words is "one hundred forty million, one hundred twenty-four thousand, four hundred forty-two".