140132251 has 4 divisors (see below), whose sum is σ = 160151152. Its totient is φ = 120113352.

The previous prime is 140132243. The next prime is 140132269. The reversal of 140132251 is 152231041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 152231041 = 743 ⋅204887.

It is a cyclic number.

It is not a de Polignac number, because 140132251 - 2³ = 140132243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140132651) 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, 10009440 + ... + 10009453.

It is an arithmetic number, because the mean of its divisors is an integer number (40037788).

Almost surely, 2^140132251 is an apocalyptic number.

140132251 is a deficient number, since it is larger than the sum of its proper divisors (20018901).

140132251 is an equidigital number, since it uses as much as digits as its factorization.

140132251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20018900.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 140132251 is about 11837.7468717658. The cubic root of 140132251 is about 519.4128617129.

Adding to 140132251 its reverse (152231041), we get a palindrome (292363292).

The spelling of 140132251 in words is "one hundred forty million, one hundred thirty-two thousand, two hundred fifty-one".