140155012 has 6 divisors (see below), whose sum is σ = 245271278. Its totient is φ = 70077504.

The previous prime is 140155007. The next prime is 140155013. The reversal of 140155012 is 210551041.

It can be written as a sum of positive squares in only one way, i.e., 130507776 + 9647236 = 11424^2 + 3106^2 .

It is not an unprimeable number, because it can be changed into a prime (140155013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17519373 + ... + 17519380.

Almost surely, 2^140155012 is an apocalyptic number.

It is an amenable number.

140155012 is a deficient number, since it is larger than the sum of its proper divisors (105116266).

140155012 is a wasteful number, since it uses less digits than its factorization.

140155012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35038757 (or 35038755 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 140155012 is about 11838.7082065570. The cubic root of 140155012 is about 519.4409820921.

The spelling of 140155012 in words is "one hundred forty million, one hundred fifty-five thousand, twelve".