140157787 has 24 divisors (see below), whose sum is σ = 178565040. Its totient is φ = 108783360.

The previous prime is 140157781. The next prime is 140157799. The reversal of 140157787 is 787751041.

140157787 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-140157787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140157781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 246039 + ... + 246607.

It is an arithmetic number, because the mean of its divisors is an integer number (7440210).

Almost surely, 2^140157787 is an apocalyptic number.

140157787 is a deficient number, since it is larger than the sum of its proper divisors (38407253).

140157787 is a wasteful number, since it uses less digits than its factorization.

140157787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051 (or 1044 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 40.

The square root of 140157787 is about 11838.8254062639. The cubic root of 140157787 is about 519.4444102944. Note that the first 4 decimals are identical.

The spelling of 140157787 in words is "one hundred forty million, one hundred fifty-seven thousand, seven hundred eighty-seven".