140740723 has 2 divisors, whose sum is σ = 140740724. Its totient is φ = 140740722.

The previous prime is 140740687. The next prime is 140740727. The reversal of 140740723 is 327047041.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140740723 is a prime.

It is a super-2 number, since 2×140740723² = 39615902221125458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140740691 and 140740700.

It is not a weakly prime, because it can be changed into another prime (140740727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70370361 + 70370362.

It is an arithmetic number, because the mean of its divisors is an integer number (70370362).

Almost surely, 2^140740723 is an apocalyptic number.

140740723 is a deficient number, since it is larger than the sum of its proper divisors (1).

140740723 is an equidigital number, since it uses as much as digits as its factorization.

140740723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 140740723 is about 11863.4195323271. The cubic root of 140740723 is about 520.1635617133.

Adding to 140740723 its reverse (327047041), we get a palindrome (467787764).

The spelling of 140740723 in words is "one hundred forty million, seven hundred forty thousand, seven hundred twenty-three".