145227270 has 32 divisors (see below), whose sum is σ = 350864640. Its totient is φ = 38469600.

The previous prime is 145227259. The next prime is 145227283. The reversal of 145227270 is 72722541.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 11500 + ... + 20559.

It is an arithmetic number, because the mean of its divisors is an integer number (10964520).

Almost surely, 2^145227270 is an apocalyptic number.

145227270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145227270 is an abundant number, since it is smaller than the sum of its proper divisors (205637370).

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

145227270 is a wasteful number, since it uses less digits than its factorization.

145227270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32220.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 145227270 is about 12051.0277570006. The cubic root of 145227270 is about 525.6331228011.

The spelling of 145227270 in words is "one hundred forty-five million, two hundred twenty-seven thousand, two hundred seventy".