74266537 has 2 divisors, whose sum is σ = 74266538. Its totient is φ = 74266536.

The previous prime is 74266499. The next prime is 74266541. The reversal of 74266537 is 73566247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73770921 + 495616 = 8589^2 + 704^2 .

It is a cyclic number.

It is not a de Polignac number, because 74266537 - 2¹⁵ = 74233769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74266537.

It is not a weakly prime, because it can be changed into another prime (74266937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37133268 + 37133269.

It is an arithmetic number, because the mean of its divisors is an integer number (37133269).

Almost surely, 2^74266537 is an apocalyptic number.

It is an amenable number.

74266537 is a deficient number, since it is larger than the sum of its proper divisors (1).

74266537 is an equidigital number, since it uses as much as digits as its factorization.

74266537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 40.

The square root of 74266537 is about 8617.8034904493. The cubic root of 74266537 is about 420.3371008675.

The spelling of 74266537 in words is "seventy-four million, two hundred sixty-six thousand, five hundred thirty-seven".