1481154191 has 4 divisors (see below), whose sum is σ = 1615804584. Its totient is φ = 1346503800.

The previous prime is 1481154133. The next prime is 1481154277. The reversal of 1481154191 is 1914511841.

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 1481154191 - 2⁶ = 1481154127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1481154491) 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, 67325180 + ... + 67325201.

It is an arithmetic number, because the mean of its divisors is an integer number (403951146).

Almost surely, 2^1481154191 is an apocalyptic number.

1481154191 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1481154191 is a deficient number, since it is larger than the sum of its proper divisors (134650393).

1481154191 is a wasteful number, since it uses less digits than its factorization.

1481154191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134650392.

The product of its digits is 5760, while the sum is 35.

The square root of 1481154191 is about 38485.7660830599. The cubic root of 1481154191 is about 1139.9000094407.

The spelling of 1481154191 in words is "one billion, four hundred eighty-one million, one hundred fifty-four thousand, one hundred ninety-one".