140432552 has 16 divisors (see below), whose sum is σ = 283565940. Its totient is φ = 64814976.

The previous prime is 140432507. The next prime is 140432557. The reversal of 140432552 is 255234041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 138909796 + 1522756 = 11786^2 + 1234^2 .

It is a super-2 number, since 2×140432552² = 39442603322465408, which contains 22 as substring.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (140432557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 675053 + ... + 675260.

Almost surely, 2^140432552 is an apocalyptic number.

It is an amenable number.

140432552 is an abundant number, since it is smaller than the sum of its proper divisors (143133388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140432552 is a wasteful number, since it uses less digits than its factorization.

140432552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350332 (or 1350328 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 140432552 is about 11850.4241274311. The cubic root of 140432552 is about 519.7836279288.

Adding to 140432552 its reverse (255234041), we get a palindrome (395666593).

The spelling of 140432552 in words is "one hundred forty million, four hundred thirty-two thousand, five hundred fifty-two".