142261123 has 2 divisors, whose sum is σ = 142261124. Its totient is φ = 142261122.

The previous prime is 142261111. The next prime is 142261129. The reversal of 142261123 is 321162241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142261123 - 2¹³ = 142252931 is a prime.

It is a super-2 number, since 2×142261123² = 40476454234442258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142261094 and 142261103.

It is not a weakly prime, because it can be changed into another prime (142261129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71130561 + 71130562.

It is an arithmetic number, because the mean of its divisors is an integer number (71130562).

Almost surely, 2^142261123 is an apocalyptic number.

142261123 is a deficient number, since it is larger than the sum of its proper divisors (1).

142261123 is an equidigital number, since it uses as much as digits as its factorization.

142261123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 22.

The square root of 142261123 is about 11927.3267331787. The cubic root of 142261123 is about 522.0299388787.

The spelling of 142261123 in words is "one hundred forty-two million, two hundred sixty-one thousand, one hundred twenty-three".