145674774 has 40 divisors (see below), whose sum is σ = 373053648. Its totient is φ = 41621040.

The previous prime is 145674733. The next prime is 145674787. The reversal of 145674774 is 477476541.

145674774 is a `hidden beast` number, since 14 + 567 + 4 + 7 + 74 = 666.

It is a super-2 number, since 2×145674774² = 42442279559902152, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 63097 + ... + 65364.

Almost surely, 2^145674774 is an apocalyptic number.

145674774 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145674774 is an abundant number, since it is smaller than the sum of its proper divisors (227378874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145674774 is a wasteful number, since it uses less digits than its factorization.

145674774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128482 (or 128473 counting only the distinct ones).

The product of its digits is 658560, while the sum is 45.

The square root of 145674774 is about 12069.5805229511. The cubic root of 145674774 is about 526.1724653366.

The spelling of 145674774 in words is "one hundred forty-five million, six hundred seventy-four thousand, seven hundred seventy-four".