351478645 has 16 divisors (see below), whose sum is σ = 489932928. Its totient is φ = 237061440.

The previous prime is 351478619. The next prime is 351478661. The reversal of 351478645 is 546874153.

It is not a de Polignac number, because 351478645 - 2¹³ = 351470453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80179 + ... + 84448.

It is an arithmetic number, because the mean of its divisors is an integer number (30620808).

Almost surely, 2^351478645 is an apocalyptic number.

351478645 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

351478645 is a deficient number, since it is larger than the sum of its proper divisors (138454283).

351478645 is a wasteful number, since it uses less digits than its factorization.

351478645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164700.

The product of its digits is 403200, while the sum is 43.

The square root of 351478645 is about 18747.7637333096. The cubic root of 351478645 is about 705.7209030112.

The spelling of 351478645 in words is "three hundred fifty-one million, four hundred seventy-eight thousand, six hundred forty-five".