142490836 has 6 divisors (see below), whose sum is σ = 249358970. Its totient is φ = 71245416.

The previous prime is 142490809. The next prime is 142490837. The reversal of 142490836 is 638094241.

It can be written as a sum of positive squares in only one way, i.e., 121969936 + 20520900 = 11044^2 + 4530^2 .

It is a junction number, because it is equal to n+sod(n) for n = 142490795 and 142490804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142490837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17811351 + ... + 17811358.

Almost surely, 2^142490836 is an apocalyptic number.

It is an amenable number.

142490836 is a deficient number, since it is larger than the sum of its proper divisors (106868134).

142490836 is a wasteful number, since it uses less digits than its factorization.

142490836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35622713 (or 35622711 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 142490836 is about 11936.9525424205. The cubic root of 142490836 is about 522.3107665431.

The spelling of 142490836 in words is "one hundred forty-two million, four hundred ninety thousand, eight hundred thirty-six".