140625461 has 2 divisors, whose sum is σ = 140625462. Its totient is φ = 140625460.

The previous prime is 140625439. The next prime is 140625467. The reversal of 140625461 is 164526041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102111025 + 38514436 = 10105^2 + 6206^2 .

It is a cyclic number.

It is not a de Polignac number, because 140625461 - 2¹⁰ = 140624437 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140625467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70312730 + 70312731.

It is an arithmetic number, because the mean of its divisors is an integer number (70312731).

Almost surely, 2^140625461 is an apocalyptic number.

It is an amenable number.

140625461 is a deficient number, since it is larger than the sum of its proper divisors (1).

140625461 is an equidigital number, since it uses as much as digits as its factorization.

140625461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 140625461 is about 11858.5606630822. The cubic root of 140625461 is about 520.0215240104.

The spelling of 140625461 in words is "one hundred forty million, six hundred twenty-five thousand, four hundred sixty-one".