140227551461 has 8 divisors (see below), whose sum is σ = 145085040120. Its totient is φ = 135371533248.

The previous prime is 140227551439. The next prime is 140227551469. The reversal of 140227551461 is 164155722041.

It can be written as a sum of positive squares in 4 ways, for example, as 20100150625 + 120127400836 = 141775^2 + 346594^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140227551461 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140227551469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171806 + ... + 556751.

It is an arithmetic number, because the mean of its divisors is an integer number (18135630015).

Almost surely, 2^140227551461 is an apocalyptic number.

It is an amenable number.

140227551461 is a deficient number, since it is larger than the sum of its proper divisors (4857488659).

140227551461 is an equidigital number, since it uses as much as digits as its factorization.

140227551461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735223.

The product of its (nonzero) digits is 67200, while the sum is 38.

The spelling of 140227551461 in words is "one hundred forty billion, two hundred twenty-seven million, five hundred fifty-one thousand, four hundred sixty-one".