142737949 has 2 divisors, whose sum is σ = 142737950. Its totient is φ = 142737948.

The previous prime is 142737943. The next prime is 142737961. The reversal of 142737949 is 949737241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85433049 + 57304900 = 9243^2 + 7570^2 .

It is an emirp because it is prime and its reverse (949737241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142737949 - 2⁷ = 142737821 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 142737899 and 142737908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142737943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71368974 + 71368975.

It is an arithmetic number, because the mean of its divisors is an integer number (71368975).

Almost surely, 2^142737949 is an apocalyptic number.

It is an amenable number.

142737949 is a deficient number, since it is larger than the sum of its proper divisors (1).

142737949 is an equidigital number, since it uses as much as digits as its factorization.

142737949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 46.

The square root of 142737949 is about 11947.2988160504. The cubic root of 142737949 is about 522.6125291999.

It can be divided in two parts, 14273 and 7949, that added together give a palindrome (22222).

The spelling of 142737949 in words is "one hundred forty-two million, seven hundred thirty-seven thousand, nine hundred forty-nine".