140401652 has 6 divisors (see below), whose sum is σ = 245702898. Its totient is φ = 70200824.

The previous prime is 140401571. The next prime is 140401661. The reversal of 140401652 is 256104041.

It can be written as a sum of positive squares in only one way, i.e., 123787876 + 16613776 = 11126^2 + 4076^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17550203 + ... + 17550210.

It is an arithmetic number, because the mean of its divisors is an integer number (40950483).

Almost surely, 2^140401652 is an apocalyptic number.

It is an amenable number.

140401652 is a deficient number, since it is larger than the sum of its proper divisors (105301246).

140401652 is a wasteful number, since it uses less digits than its factorization.

140401652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35100417 (or 35100415 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 140401652 is about 11849.1203049003. The cubic root of 140401652 is about 519.7455016965.

Adding to 140401652 its reverse (256104041), we get a palindrome (396505693).

The spelling of 140401652 in words is "one hundred forty million, four hundred one thousand, six hundred fifty-two".