147145557 has 32 divisors (see below), whose sum is σ = 235509120. Its totient is φ = 80732160.

The previous prime is 147145547. The next prime is 147145573. The reversal of 147145557 is 755541741.

It is not a de Polignac number, because 147145557 - 2⁴ = 147145541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147145517) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6757 + ... + 18437.

It is an arithmetic number, because the mean of its divisors is an integer number (7359660).

Almost surely, 2^147145557 is an apocalyptic number.

147145557 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

147145557 is a deficient number, since it is larger than the sum of its proper divisors (88363563).

147145557 is a wasteful number, since it uses less digits than its factorization.

147145557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11733.

The product of its digits is 98000, while the sum is 39.

The square root of 147145557 is about 12130.3568372905. The cubic root of 147145557 is about 527.9373454982.

The spelling of 147145557 in words is "one hundred forty-seven million, one hundred forty-five thousand, five hundred fifty-seven".