4012537 has 2 divisors, whose sum is σ = 4012538. Its totient is φ = 4012536.

The previous prime is 4012507. The next prime is 4012549. The reversal of 4012537 is 7352104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3136441 + 876096 = 1771^2 + 936^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4012537 is a prime.

It is a super-2 number, since 2×4012537² = 32200906352738, which contains 22 as substring.

4012537 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4012507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2006268 + 2006269.

It is an arithmetic number, because the mean of its divisors is an integer number (2006269).

Almost surely, 2^4012537 is an apocalyptic number.

It is an amenable number.

4012537 is a deficient number, since it is larger than the sum of its proper divisors (1).

4012537 is an equidigital number, since it uses as much as digits as its factorization.

4012537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 4012537 is about 2003.1317979604. The cubic root of 4012537 is about 158.9057759576.

The spelling of 4012537 in words is "four million, twelve thousand, five hundred thirty-seven".