37981103 has 2 divisors, whose sum is σ = 37981104. Its totient is φ = 37981102.

The previous prime is 37981087. The next prime is 37981109. The reversal of 37981103 is 30118973.

It is a strong prime.

It is an emirp because it is prime and its reverse (30118973) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 37981103 - 2⁴ = 37981087 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 37981103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37981109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18990551 + 18990552.

It is an arithmetic number, because the mean of its divisors is an integer number (18990552).

Almost surely, 2^37981103 is an apocalyptic number.

37981103 is a deficient number, since it is larger than the sum of its proper divisors (1).

37981103 is an equidigital number, since it uses as much as digits as its factorization.

37981103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 37981103 is about 6162.8810632690. The cubic root of 37981103 is about 336.1418022735.

The spelling of 37981103 in words is "thirty-seven million, nine hundred eighty-one thousand, one hundred three".