140603551 has 8 divisors (see below), whose sum is σ = 153479808. Its totient is φ = 127743000.

The previous prime is 140603539. The next prime is 140603563. The reversal of 140603551 is 155306041.

It is an interprime number because it is at equal distance from previous prime (140603539) and next prime (140603563).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140603551 - 2¹⁹ = 140079263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140603521) 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 7 ways as a sum of consecutive naturals, for example, 22656 + ... + 28186.

It is an arithmetic number, because the mean of its divisors is an integer number (19184976).

Almost surely, 2^140603551 is an apocalyptic number.

140603551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

140603551 is a deficient number, since it is larger than the sum of its proper divisors (12876257).

140603551 is a wasteful number, since it uses less digits than its factorization.

140603551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7853.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 140603551 is about 11857.6368218967. The cubic root of 140603551 is about 519.9945154747.

Adding to 140603551 its reverse (155306041), we get a palindrome (295909592).

The spelling of 140603551 in words is "one hundred forty million, six hundred three thousand, five hundred fifty-one".