345115550 has 24 divisors (see below), whose sum is σ = 691294296. Its totient is φ = 127427040.

The previous prime is 345115541. The next prime is 345115559. The reversal of 345115550 is 55511543.

It is an interprime number because it is at equal distance from previous prime (345115541) and next prime (345115559).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345115559) 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 11 ways as a sum of consecutive naturals, for example, 264824 + ... + 266123.

It is an arithmetic number, because the mean of its divisors is an integer number (28803929).

Almost surely, 2^345115550 is an apocalyptic number.

345115550 is an abundant number, since it is smaller than the sum of its proper divisors (346178746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345115550 is a wasteful number, since it uses less digits than its factorization.

345115550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530972 (or 530967 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 345115550 is about 18577.2858620413. The cubic root of 345115550 is about 701.4362009686.

The spelling of 345115550 in words is "three hundred forty-five million, one hundred fifteen thousand, five hundred fifty".