345220151 has 4 divisors (see below), whose sum is σ = 351071400. Its totient is φ = 339368904.

The previous prime is 345220103. The next prime is 345220171. The reversal of 345220151 is 151022543.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 345220151 - 2¹⁸ = 344958007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345220171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2925536 + ... + 2925653.

It is an arithmetic number, because the mean of its divisors is an integer number (87767850).

Almost surely, 2^345220151 is an apocalyptic number.

345220151 is a deficient number, since it is larger than the sum of its proper divisors (5851249).

345220151 is an equidigital number, since it uses as much as digits as its factorization.

345220151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5851248.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 345220151 is about 18580.1009415988. The cubic root of 345220151 is about 701.5070598608.

Adding to 345220151 its reverse (151022543), we get a palindrome (496242694).

The spelling of 345220151 in words is "three hundred forty-five million, two hundred twenty thousand, one hundred fifty-one".