145471774 has 8 divisors (see below), whose sum is σ = 249380208. Its totient is φ = 62345040.

The previous prime is 145471633. The next prime is 145471787. The reversal of 145471774 is 477174541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5195407 + ... + 5195434.

It is an arithmetic number, because the mean of its divisors is an integer number (31172526).

Almost surely, 2^145471774 is an apocalyptic number.

145471774 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145471774 is a deficient number, since it is larger than the sum of its proper divisors (103908434).

145471774 is a wasteful number, since it uses less digits than its factorization.

145471774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10390850.

The product of its digits is 109760, while the sum is 40.

The square root of 145471774 is about 12061.1680197235. The cubic root of 145471774 is about 525.9279419572.

The spelling of 145471774 in words is "one hundred forty-five million, four hundred seventy-one thousand, seven hundred seventy-four".