1354591690 has 8 divisors (see below), whose sum is σ = 2438265060. Its totient is φ = 541836672.

The previous prime is 1354591657. The next prime is 1354591703. The reversal of 1354591690 is 961954531.

It can be written as a sum of positive squares in 2 ways, for example, as 1152127249 + 202464441 = 33943^2 + 14229^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1354591690² = 3669837293234112200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67729575 + ... + 67729594.

Almost surely, 2^1354591690 is an apocalyptic number.

1354591690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1354591690 is a deficient number, since it is larger than the sum of its proper divisors (1083673370).

1354591690 is a wasteful number, since it uses less digits than its factorization.

1354591690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135459176.

The product of its (nonzero) digits is 145800, while the sum is 43.

The square root of 1354591690 is about 36804.7780865474. The cubic root of 1354591690 is about 1106.4610635405.

The spelling of 1354591690 in words is "one billion, three hundred fifty-four million, five hundred ninety-one thousand, six hundred ninety".