140547461 has 2 divisors, whose sum is σ = 140547462. Its totient is φ = 140547460.

The previous prime is 140547443. The next prime is 140547493. The reversal of 140547461 is 164745041.

It is an a-pointer prime, because the next prime (140547493) can be obtained adding 140547461 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79316836 + 61230625 = 8906^2 + 7825^2 .

It is a cyclic number.

It is not a de Polignac number, because 140547461 - 2¹⁴ = 140531077 is a prime.

It is equal to p_7941263 and since 140547461 and 7941263 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140547401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70273730 + 70273731.

It is an arithmetic number, because the mean of its divisors is an integer number (70273731).

Almost surely, 2^140547461 is an apocalyptic number.

It is an amenable number.

140547461 is a deficient number, since it is larger than the sum of its proper divisors (1).

140547461 is an equidigital number, since it uses as much as digits as its factorization.

140547461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 140547461 is about 11855.2714435394. The cubic root of 140547461 is about 519.9253603421.

The spelling of 140547461 in words is "one hundred forty million, five hundred forty-seven thousand, four hundred sixty-one".