874134945 has 12 divisors (see below), whose sum is σ = 1515167316. Its totient is φ = 466205280.

The previous prime is 874134893. The next prime is 874134967. The reversal of 874134945 is 549431478.

It can be written as a sum of positive squares in 2 ways, for example, as 175907169 + 698227776 = 13263^2 + 26424^2 .

It is not a de Polignac number, because 874134945 - 2⁷ = 874134817 is a prime.

It is a super-2 number, since 2×874134945² = 1528223804140306050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 19425221 = 874134945 / (8 + 7 + 4 + 1 + 3 + 4 + 9 + 4 + 5).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 874134945.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9712566 + ... + 9712655.

It is an arithmetic number, because the mean of its divisors is an integer number (126263943).

Almost surely, 2^874134945 is an apocalyptic number.

It is an amenable number.

874134945 is a deficient number, since it is larger than the sum of its proper divisors (641032371).

874134945 is a wasteful number, since it uses less digits than its factorization.

874134945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19425232 (or 19425229 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 874134945 is about 29565.7732014571. The cubic root of 874134945 is about 956.1502892316.

The spelling of 874134945 in words is "eight hundred seventy-four million, one hundred thirty-four thousand, nine hundred forty-five".