345131051 has 4 divisors (see below), whose sum is σ = 347197872. Its totient is φ = 343064232.

The previous prime is 345131047. The next prime is 345131063. The reversal of 345131051 is 150131543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150131543 = 31 ⋅4842953.

It is a cyclic number.

It is not a de Polignac number, because 345131051 - 2² = 345131047 is a prime.

It is a super-3 number, since 3×345131051³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345131551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1033160 + ... + 1033493.

It is an arithmetic number, because the mean of its divisors is an integer number (86799468).

Almost surely, 2^345131051 is an apocalyptic number.

345131051 is a deficient number, since it is larger than the sum of its proper divisors (2066821).

345131051 is a wasteful number, since it uses less digits than its factorization.

345131051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2066820.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 345131051 is about 18577.7030603894. The cubic root of 345131051 is about 701.4467025719.

Adding to 345131051 its reverse (150131543), we get a palindrome (495262594).

The spelling of 345131051 in words is "three hundred forty-five million, one hundred thirty-one thousand, fifty-one".