140154867 has 12 divisors (see below), whose sum is σ = 209944280. Its totient is φ = 93436416.

The previous prime is 140154823. The next prime is 140154869. The reversal of 140154867 is 768451041.

It is a happy number.

It is not a de Polignac number, because 140154867 - 2⁶ = 140154803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140154869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 288142 + ... + 288627.

Almost surely, 2^140154867 is an apocalyptic number.

140154867 is a deficient number, since it is larger than the sum of its proper divisors (69789413).

140154867 is an frugal number, since it uses more digits than its factorization.

140154867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576784 (or 576772 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 140154867 is about 11838.7020825765. The cubic root of 140154867 is about 519.4408029595.

The spelling of 140154867 in words is "one hundred forty million, one hundred fifty-four thousand, eight hundred sixty-seven".