147011257 has 8 divisors (see below), whose sum is σ = 157201992. Its totient is φ = 136992000.

The previous prime is 147011219. The next prime is 147011261. The reversal of 147011257 is 752110741.

147011257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 115863696 + 31147561 = 10764^2 + 5581^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 147011257 - 2¹¹ = 147009209 is a prime.

It is a super-2 number, since 2×147011257² = 43224619369440098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (147011287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41094 + ... + 44527.

It is an arithmetic number, because the mean of its divisors is an integer number (19650249).

Almost surely, 2^147011257 is an apocalyptic number.

147011257 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

147011257 is a deficient number, since it is larger than the sum of its proper divisors (10190735).

147011257 is a wasteful number, since it uses less digits than its factorization.

147011257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85739.

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 147011257 is about 12124.8198749507. The cubic root of 147011257 is about 527.7766801709.

Adding to 147011257 its reverse (752110741), we get a palindrome (899121998).

The spelling of 147011257 in words is "one hundred forty-seven million, eleven thousand, two hundred fifty-seven".