28141537 has 2 divisors, whose sum is σ = 28141538. Its totient is φ = 28141536.

The previous prime is 28141501. The next prime is 28141559. The reversal of 28141537 is 73514182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21150801 + 6990736 = 4599^2 + 2644^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28141537 is a prime.

It is a super-2 number, since 2×28141537² = 1583892209444738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28141499 and 28141508.

It is not a weakly prime, because it can be changed into another prime (28141577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14070768 + 14070769.

It is an arithmetic number, because the mean of its divisors is an integer number (14070769).

Almost surely, 2^28141537 is an apocalyptic number.

It is an amenable number.

28141537 is a deficient number, since it is larger than the sum of its proper divisors (1).

28141537 is an equidigital number, since it uses as much as digits as its factorization.

28141537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 31.

The square root of 28141537 is about 5304.8597530943. The cubic root of 28141537 is about 304.1696918779.

The spelling of 28141537 in words is "twenty-eight million, one hundred forty-one thousand, five hundred thirty-seven".