140042201 has 4 divisors (see below), whose sum is σ = 150814692. Its totient is φ = 129269712.

The previous prime is 140042197. The next prime is 140042213. The reversal of 140042201 is 102240041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102240041 = 2503 ⋅40847.

It can be written as a sum of positive squares in 2 ways, for example, as 16810000 + 123232201 = 4100^2 + 11101^2 .

It is not a de Polignac number, because 140042201 - 2² = 140042197 is a prime.

It is a super-2 number, since 2×140042201² = 39223636121848802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140042401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5386226 + ... + 5386251.

It is an arithmetic number, because the mean of its divisors is an integer number (37703673).

Almost surely, 2^140042201 is an apocalyptic number.

It is an amenable number.

140042201 is a deficient number, since it is larger than the sum of its proper divisors (10772491).

140042201 is a wasteful number, since it uses less digits than its factorization.

140042201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10772490.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 140042201 is about 11833.9427495658. The cubic root of 140042201 is about 519.3015783826.

Adding to 140042201 its reverse (102240041), we get a palindrome (242282242).

The spelling of 140042201 in words is "one hundred forty million, forty-two thousand, two hundred one".