140401123 has 2 divisors, whose sum is σ = 140401124. Its totient is φ = 140401122.

The previous prime is 140401087. The next prime is 140401153. The reversal of 140401123 is 321104041.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140401123 is a prime.

It is a super-2 number, since 2×140401123² = 39424950679322258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140401097 and 140401106.

It is not a weakly prime, because it can be changed into another prime (140401153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70200561 + 70200562.

It is an arithmetic number, because the mean of its divisors is an integer number (70200562).

Almost surely, 2^140401123 is an apocalyptic number.

140401123 is a deficient number, since it is larger than the sum of its proper divisors (1).

140401123 is an equidigital number, since it uses as much as digits as its factorization.

140401123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 140401123 is about 11849.0979825470. The cubic root of 140401123 is about 519.7448489366.

Adding to 140401123 its reverse (321104041), we get a palindrome (461505164).

It can be divided in two parts, 14040 and 1123, that multiplied together give a triangular number (15766920 = T₅₆₁₅).

The spelling of 140401123 in words is "one hundred forty million, four hundred one thousand, one hundred twenty-three".