345525399 has 8 divisors (see below), whose sum is σ = 511889520. Its totient is φ = 230350248.

The previous prime is 345525379. The next prime is 345525413. The reversal of 345525399 is 993525543.

345525399 is a `hidden beast` number, since 3 + 4 + 552 + 5 + 3 + 99 = 666.

It is not a de Polignac number, because 345525399 - 2⁸ = 345525143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345525319) 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 7 ways as a sum of consecutive naturals, for example, 6398592 + ... + 6398645.

It is an arithmetic number, because the mean of its divisors is an integer number (63986190).

Almost surely, 2^345525399 is an apocalyptic number.

345525399 is a deficient number, since it is larger than the sum of its proper divisors (166364121).

345525399 is a wasteful number, since it uses less digits than its factorization.

345525399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12797246 (or 12797240 counting only the distinct ones).

The product of its digits is 729000, while the sum is 45.

The square root of 345525399 is about 18588.3135060715. The cubic root of 345525399 is about 701.7137594061.

The spelling of 345525399 in words is "three hundred forty-five million, five hundred twenty-five thousand, three hundred ninety-nine".