1354999481 has 4 divisors (see below), whose sum is σ = 1478181264. Its totient is φ = 1231817700.

The previous prime is 1354999469. The next prime is 1354999493. The reversal of 1354999481 is 1849994531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1354999469) and next prime (1354999493).

It is a cyclic number.

It is not a de Polignac number, because 1354999481 - 2³⁰ = 281257657 is a prime.

It is a super-2 number, since 2×1354999481² = 3672047187020538722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1354999381) 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, 61590875 + ... + 61590896.

It is an arithmetic number, because the mean of its divisors is an integer number (369545316).

Almost surely, 2^1354999481 is an apocalyptic number.

1354999481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1354999481 is a deficient number, since it is larger than the sum of its proper divisors (123181783).

1354999481 is a wasteful number, since it uses less digits than its factorization.

1354999481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123181782.

The product of its digits is 1399680, while the sum is 53.

The square root of 1354999481 is about 36810.3175889587. The cubic root of 1354999481 is about 1106.5720833646.

The spelling of 1354999481 in words is "one billion, three hundred fifty-four million, nine hundred ninety-nine thousand, four hundred eighty-one".