140406165352 has 8 divisors (see below), whose sum is σ = 263261560050. Its totient is φ = 70203082672.

The previous prime is 140406165331. The next prime is 140406165373. The reversal of 140406165352 is 253561604041.

It is an interprime number because it is at equal distance from previous prime (140406165331) and next prime (140406165373).

It can be written as a sum of positive squares in only one way, i.e., 76278706596 + 64127458756 = 276186^2 + 253234^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8775385327 + ... + 8775385342.

Almost surely, 2^140406165352 is an apocalyptic number.

It is an amenable number.

140406165352 is a deficient number, since it is larger than the sum of its proper divisors (122855394698).

140406165352 is a wasteful number, since it uses less digits than its factorization.

140406165352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17550770675 (or 17550770671 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 140406165352 its reverse (253561604041), we get a palindrome (393967769393).

The spelling of 140406165352 in words is "one hundred forty billion, four hundred six million, one hundred sixty-five thousand, three hundred fifty-two".