147945405 has 16 divisors (see below), whose sum is σ = 236880000. Its totient is φ = 78848448.

The previous prime is 147945403. The next prime is 147945409. The reversal of 147945405 is 504549741.

It is not a de Polignac number, because 147945405 - 2¹ = 147945403 is a prime.

It is a super-2 number, since 2×147945405² = 43775685721228050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147945403) 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 15 ways as a sum of consecutive naturals, for example, 27096 + ... + 32094.

It is an arithmetic number, because the mean of its divisors is an integer number (14805000).

Almost surely, 2^147945405 is an apocalyptic number.

147945405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

147945405 is a deficient number, since it is larger than the sum of its proper divisors (88934595).

147945405 is a wasteful number, since it uses less digits than its factorization.

147945405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6980.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 147945405 is about 12163.2810129504. The cubic root of 147945405 is about 528.8921977816.

The spelling of 147945405 in words is "one hundred forty-seven million, nine hundred forty-five thousand, four hundred five".