142534949 has 2 divisors, whose sum is σ = 142534950. Its totient is φ = 142534948.

The previous prime is 142534897. The next prime is 142534961. The reversal of 142534949 is 949435241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118701025 + 23833924 = 10895^2 + 4882^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142534949 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142534969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71267474 + 71267475.

It is an arithmetic number, because the mean of its divisors is an integer number (71267475).

Almost surely, 2^142534949 is an apocalyptic number.

It is an amenable number.

142534949 is a deficient number, since it is larger than the sum of its proper divisors (1).

142534949 is an equidigital number, since it uses as much as digits as its factorization.

142534949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 41.

The square root of 142534949 is about 11938.8001490937. The cubic root of 142534949 is about 522.3646608103.

The spelling of 142534949 in words is "one hundred forty-two million, five hundred thirty-four thousand, nine hundred forty-nine".