1547134157 has 4 divisors (see below), whose sum is σ = 1549042656. Its totient is φ = 1545225660.

The previous prime is 1547134153. The next prime is 1547134217. The reversal of 1547134157 is 7514317451.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 1547134157 - 2² = 1547134153 is a prime.

It is a super-2 number, since 2×1547134157² = 4787248199512201298, 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 1547134157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1547134153) by changing a digit.

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, 953033 + ... + 954654.

It is an arithmetic number, because the mean of its divisors is an integer number (387260664).

Almost surely, 2^1547134157 is an apocalyptic number.

It is an amenable number.

1547134157 is a deficient number, since it is larger than the sum of its proper divisors (1908499).

1547134157 is an equidigital number, since it uses as much as digits as its factorization.

1547134157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1908498.

The product of its digits is 58800, while the sum is 38.

The square root of 1547134157 is about 39333.6262884571. The cubic root of 1547134157 is about 1156.5808346625.

The spelling of 1547134157 in words is "one billion, five hundred forty-seven million, one hundred thirty-four thousand, one hundred fifty-seven".