142928737 has 12 divisors (see below), whose sum is σ = 166525956. Its totient is φ = 122317440.

The previous prime is 142928717. The next prime is 142928759. The reversal of 142928737 is 737829241.

It can be written as a sum of positive squares in 2 ways, for example, as 10010896 + 132917841 = 3164^2 + 11529^2 .

It is not a de Polignac number, because 142928737 - 2¹⁵ = 142895969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142928693 and 142928702.

It is not an unprimeable number, because it can be changed into a prime (142928717) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35373 + ... + 39205.

It is an arithmetic number, because the mean of its divisors is an integer number (13877163).

Almost surely, 2^142928737 is an apocalyptic number.

It is an amenable number.

142928737 is a deficient number, since it is larger than the sum of its proper divisors (23597219).

142928737 is an equidigital number, since it uses as much as digits as its factorization.

142928737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4608 (or 4601 counting only the distinct ones).

The product of its digits is 169344, while the sum is 43.

The square root of 142928737 is about 11955.2807160685. The cubic root of 142928737 is about 522.8452722756.

The spelling of 142928737 in words is "one hundred forty-two million, nine hundred twenty-eight thousand, seven hundred thirty-seven".