1674552491 has 2 divisors, whose sum is σ = 1674552492. Its totient is φ = 1674552490.

The previous prime is 1674552487. The next prime is 1674552511. The reversal of 1674552491 is 1942554761.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1674552491 - 2² = 1674552487 is a prime.

It is a super-2 number, since 2×1674552491² = 5608252090228610162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1674552091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 837276245 + 837276246.

It is an arithmetic number, because the mean of its divisors is an integer number (837276246).

Almost surely, 2^1674552491 is an apocalyptic number.

1674552491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1674552491 is an equidigital number, since it uses as much as digits as its factorization.

1674552491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 44.

The square root of 1674552491 is about 40921.2963015592. The cubic root of 1674552491 is about 1187.4980957458.

The spelling of 1674552491 in words is "one billion, six hundred seventy-four million, five hundred fifty-two thousand, four hundred ninety-one".