345137477 has 4 divisors (see below), whose sum is σ = 356270976. Its totient is φ = 334003980.

The previous prime is 345137459. The next prime is 345137483. The reversal of 345137477 is 774731543.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345137477 is a prime.

It is a super-3 number, since 3×345137477³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345137437) 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, 5566703 + ... + 5566764.

It is an arithmetic number, because the mean of its divisors is an integer number (89067744).

Almost surely, 2^345137477 is an apocalyptic number.

It is an amenable number.

345137477 is a deficient number, since it is larger than the sum of its proper divisors (11133499).

345137477 is a wasteful number, since it uses less digits than its factorization.

345137477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11133498.

The product of its digits is 246960, while the sum is 41.

The square root of 345137477 is about 18577.8760088445. The cubic root of 345137477 is about 701.4510559603.

The spelling of 345137477 in words is "three hundred forty-five million, one hundred thirty-seven thousand, four hundred seventy-seven".