142000154969 has 2 divisors, whose sum is σ = 142000154970. Its totient is φ = 142000154968.

The previous prime is 142000154957. The next prime is 142000155061. The reversal of 142000154969 is 969451000241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129251035225 + 12749119744 = 359515^2 + 112912^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142000154969 is a prime.

It is a super-2 number, since 2×142000154969² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (142000124969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71000077484 + 71000077485.

It is an arithmetic number, because the mean of its divisors is an integer number (71000077485).

Almost surely, 2^142000154969 is an apocalyptic number.

It is an amenable number.

142000154969 is a deficient number, since it is larger than the sum of its proper divisors (1).

142000154969 is an equidigital number, since it uses as much as digits as its factorization.

142000154969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 142000154969 in words is "one hundred forty-two billion, one hundred fifty-four thousand, nine hundred sixty-nine".