345740551 has 16 divisors (see below), whose sum is σ = 385493248. Its totient is φ = 307929600.

The previous prime is 345740539. The next prime is 345740557. The reversal of 345740551 is 155047543.

It is a cyclic number.

It is not a de Polignac number, because 345740551 - 2¹⁵ = 345707783 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 (345740557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158911 + ... + 161071.

It is an arithmetic number, because the mean of its divisors is an integer number (24093328).

Almost surely, 2^345740551 is an apocalyptic number.

345740551 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

345740551 is a deficient number, since it is larger than the sum of its proper divisors (39752697).

345740551 is a wasteful number, since it uses less digits than its factorization.

345740551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 345740551 is about 18594.0998975481. The cubic root of 345740551 is about 701.8593770593.

The spelling of 345740551 in words is "three hundred forty-five million, seven hundred forty thousand, five hundred fifty-one".