140051401 has 16 divisors (see below), whose sum is σ = 165626496. Its totient is φ = 115917696.

The previous prime is 140051383. The next prime is 140051447. The reversal of 140051401 is 104150041.

It is a cyclic number.

It is not a de Polignac number, because 140051401 - 2⁵ = 140051369 is a prime.

It is a super-2 number, since 2×140051401² = 39228789844125602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140051101) 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 15 ways as a sum of consecutive naturals, for example, 33510 + ... + 37456.

It is an arithmetic number, because the mean of its divisors is an integer number (10351656).

Almost surely, 2^140051401 is an apocalyptic number.

It is an amenable number.

140051401 is a deficient number, since it is larger than the sum of its proper divisors (25575095).

140051401 is a wasteful number, since it uses less digits than its factorization.

140051401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4128.

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

The square root of 140051401 is about 11834.3314555576. The cubic root of 140051401 is about 519.3129498832.

The spelling of 140051401 in words is "one hundred forty million, fifty-one thousand, four hundred one".