140235006451 has 8 divisors (see below), whose sum is σ = 145050089184. Its totient is φ = 135486338880.

The previous prime is 140235006437. The next prime is 140235006473. The reversal of 140235006451 is 154600532041.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 140235006451 - 2¹³ = 140234998259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140235006151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16599496 + ... + 16607941.

It is an arithmetic number, because the mean of its divisors is an integer number (18131261148).

Almost surely, 2^140235006451 is an apocalyptic number.

140235006451 is a deficient number, since it is larger than the sum of its proper divisors (4815082733).

140235006451 is a wasteful number, since it uses less digits than its factorization.

140235006451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33207581.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 140235006451 its reverse (154600532041), we get a palindrome (294835538492).

The spelling of 140235006451 in words is "one hundred forty billion, two hundred thirty-five million, six thousand, four hundred fifty-one".