147091019 has 4 divisors (see below), whose sum is σ = 148249344. Its totient is φ = 145932696.

The previous prime is 147091013. The next prime is 147091033. The reversal of 147091019 is 910190741.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 910190741 = 26627 ⋅34183.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147091019 is a prime.

It is a super-2 number, since 2×147091019² = 43271535740916722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147091013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578972 + ... + 579225.

It is an arithmetic number, because the mean of its divisors is an integer number (37062336).

Almost surely, 2^147091019 is an apocalyptic number.

147091019 is a deficient number, since it is larger than the sum of its proper divisors (1158325).

147091019 is a wasteful number, since it uses less digits than its factorization.

147091019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158324.

The product of its (nonzero) digits is 2268, while the sum is 32.

The square root of 147091019 is about 12128.1086324290. The cubic root of 147091019 is about 527.8721125740.

The spelling of 147091019 in words is "one hundred forty-seven million, ninety-one thousand, nineteen".