140154001 has 8 divisors (see below), whose sum is σ = 159813864. Its totient is φ = 121762560.

The previous prime is 140153971. The next prime is 140154029. The reversal of 140154001 is 100451041.

It can be written as a sum of positive squares in 4 ways, for example, as 40653376 + 99500625 = 6376^2 + 9975^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 140154001 - 2¹³ = 140145809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140154401) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 316870 + ... + 317311.

It is an arithmetic number, because the mean of its divisors is an integer number (19976733).

Almost surely, 2^140154001 is an apocalyptic number.

It is an amenable number.

140154001 is a deficient number, since it is larger than the sum of its proper divisors (19659863).

140154001 is a wasteful number, since it uses less digits than its factorization.

140154001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634211.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 140154001 is about 11838.6655075646. The cubic root of 140154001 is about 519.4397331033.

The spelling of 140154001 in words is "one hundred forty million, one hundred fifty-four thousand, one".