345002551 has 4 divisors (see below), whose sum is σ = 363160600. Its totient is φ = 326844504.

The previous prime is 345002533. The next prime is 345002557. The reversal of 345002551 is 155200543.

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 345002551 - 2¹⁷ = 344871479 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 (345002557) 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, 9078996 + ... + 9079033.

It is an arithmetic number, because the mean of its divisors is an integer number (90790150).

Almost surely, 2^345002551 is an apocalyptic number.

345002551 is a deficient number, since it is larger than the sum of its proper divisors (18158049).

345002551 is a wasteful number, since it uses less digits than its factorization.

345002551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18158048.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 345002551 is about 18574.2442914914. The cubic root of 345002551 is about 701.3596370066.

The spelling of 345002551 in words is "three hundred forty-five million, two thousand, five hundred fifty-one".