140861157 has 4 divisors (see below), whose sum is σ = 187814880. Its totient is φ = 93907436.

The previous prime is 140861141. The next prime is 140861197. The reversal of 140861157 is 751168041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140861157 - 2⁴ = 140861141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140861137) 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, 23476857 + ... + 23476862.

It is an arithmetic number, because the mean of its divisors is an integer number (46953720).

Almost surely, 2^140861157 is an apocalyptic number.

It is an amenable number.

140861157 is a deficient number, since it is larger than the sum of its proper divisors (46953723).

140861157 is an equidigital number, since it uses as much as digits as its factorization.

140861157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46953722.

The product of its (nonzero) digits is 6720, while the sum is 33.

The square root of 140861157 is about 11868.4943021430. The cubic root of 140861157 is about 520.3118900641.

The spelling of 140861157 in words is "one hundred forty million, eight hundred sixty-one thousand, one hundred fifty-seven".