142737890 has 8 divisors (see below), whose sum is σ = 256928220. Its totient is φ = 57095152.

The previous prime is 142737883. The next prime is 142737901. The reversal of 142737890 is 98737241.

It can be written as a sum of positive squares in 2 ways, for example, as 119399329 + 23338561 = 10927^2 + 4831^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7136885 + ... + 7136904.

Almost surely, 2^142737890 is an apocalyptic number.

142737890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142737890 is a deficient number, since it is larger than the sum of its proper divisors (114190330).

142737890 is a wasteful number, since it uses less digits than its factorization.

142737890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14273796.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 142737890 is about 11947.2963468728. The cubic root of 142737890 is about 522.6124571934.

The spelling of 142737890 in words is "one hundred forty-two million, seven hundred thirty-seven thousand, eight hundred ninety".