147531131 has 8 divisors (see below), whose sum is σ = 167940864. Its totient is φ = 128287720.

The previous prime is 147531121. The next prime is 147531169. The reversal of 147531131 is 131135741.

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

It is not a de Polignac number, because 147531131 - 2¹⁸ = 147268987 is a prime.

It is a super-2 number, since 2×147531131² = 43530869228278322, 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 147531131.

It is not an unprimeable number, because it can be changed into a prime (147531101) 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, 291311 + ... + 291816.

It is an arithmetic number, because the mean of its divisors is an integer number (20992608).

Almost surely, 2^147531131 is an apocalyptic number.

147531131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

147531131 is a deficient number, since it is larger than the sum of its proper divisors (20409733).

147531131 is a wasteful number, since it uses less digits than its factorization.

147531131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583161.

The product of its digits is 1260, while the sum is 26.

The square root of 147531131 is about 12146.2393768606. The cubic root of 147531131 is about 528.3980715473.

Adding to 147531131 its reverse (131135741), we get a palindrome (278666872).

The spelling of 147531131 in words is "one hundred forty-seven million, five hundred thirty-one thousand, one hundred thirty-one".