1355166451 has 4 divisors (see below), whose sum is σ = 1355564632. Its totient is φ = 1354768272.

The previous prime is 1355166443. The next prime is 1355166467. The reversal of 1355166451 is 1546615531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1355166451 - 2³ = 1355166443 is a prime.

It is a super-2 number, since 2×1355166451² = 3672952219831870802, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1355166451.

It is not an unprimeable number, because it can be changed into a prime (1355166401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193941 + ... + 200806.

It is an arithmetic number, because the mean of its divisors is an integer number (338891158).

Almost surely, 2^1355166451 is an apocalyptic number.

1355166451 is a deficient number, since it is larger than the sum of its proper divisors (398181).

1355166451 is an equidigital number, since it uses as much as digits as its factorization.

1355166451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398180.

The product of its digits is 54000, while the sum is 37.

The square root of 1355166451 is about 36812.5854973540. The cubic root of 1355166451 is about 1106.6175339975.

The spelling of 1355166451 in words is "one billion, three hundred fifty-five million, one hundred sixty-six thousand, four hundred fifty-one".