37454981 has 2 divisors, whose sum is σ = 37454982. Its totient is φ = 37454980.

The previous prime is 37454969. The next prime is 37454987. The reversal of 37454981 is 18945473.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34409956 + 3045025 = 5866^2 + 1745^2 .

It is a cyclic number.

It is not a de Polignac number, because 37454981 - 2⁶ = 37454917 is a prime.

It is a super-2 number, since 2×37454981² = 2805751203420722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37454987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18727490 + 18727491.

It is an arithmetic number, because the mean of its divisors is an integer number (18727491).

Almost surely, 2^37454981 is an apocalyptic number.

It is an amenable number.

37454981 is a deficient number, since it is larger than the sum of its proper divisors (1).

37454981 is an equidigital number, since it uses as much as digits as its factorization.

37454981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 37454981 is about 6120.0474671362. The cubic root of 37454981 is about 334.5824782855.

It can be divided in two parts, 374 and 54981, that added together give a palindrome (55355).

The spelling of 37454981 in words is "thirty-seven million, four hundred fifty-four thousand, nine hundred eighty-one".