375802981 has 2 divisors, whose sum is σ = 375802982. Its totient is φ = 375802980.

The previous prime is 375802927. The next prime is 375802991. The reversal of 375802981 is 189208573.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 307476225 + 68326756 = 17535^2 + 8266^2 .

It is an emirp because it is prime and its reverse (189208573) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 375802981 - 2²³ = 367414373 is a prime.

It is a super-2 number, since 2×375802981² = 282455761056972722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (375802991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187901490 + 187901491.

It is an arithmetic number, because the mean of its divisors is an integer number (187901491).

Almost surely, 2^375802981 is an apocalyptic number.

It is an amenable number.

375802981 is a deficient number, since it is larger than the sum of its proper divisors (1).

375802981 is an equidigital number, since it uses as much as digits as its factorization.

375802981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 375802981 is about 19385.6385244335. The cubic root of 375802981 is about 721.6391288774.

The spelling of 375802981 in words is "three hundred seventy-five million, eight hundred two thousand, nine hundred eighty-one".