140025154 has 4 divisors (see below), whose sum is σ = 210037734. Its totient is φ = 70012576.

The previous prime is 140025143. The next prime is 140025181. The reversal of 140025154 is 451520041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 451520041 = 7 ⋅64502863.

It can be written as a sum of positive squares in only one way, i.e., 112933129 + 27092025 = 10627^2 + 5205^2 .

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 as a sum of consecutive naturals, namely, 35006287 + ... + 35006290.

Almost surely, 2^140025154 is an apocalyptic number.

140025154 is a deficient number, since it is larger than the sum of its proper divisors (70012580).

140025154 is an equidigital number, since it uses as much as digits as its factorization.

140025154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70012579.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 140025154 is about 11833.2224689642. Note that the first 3 decimals coincide. The cubic root of 140025154 is about 519.2805064173.

Adding to 140025154 its reverse (451520041), we get a palindrome (591545195).

The spelling of 140025154 in words is "one hundred forty million, twenty-five thousand, one hundred fifty-four".