145620270 has 24 divisors (see below), whose sum is σ = 378612936. Its totient is φ = 38832048.

The previous prime is 145620269. The next prime is 145620301. The reversal of 145620270 is 72026541.

145620270 is a `hidden beast` number, since 1 + 456 + 202 + 7 + 0 = 666.

It is a super-3 number, since 3×145620270³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 808912 + ... + 809091.

It is an arithmetic number, because the mean of its divisors is an integer number (15775539).

Almost surely, 2^145620270 is an apocalyptic number.

145620270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145620270 is an abundant number, since it is smaller than the sum of its proper divisors (232992666).

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

145620270 is a wasteful number, since it uses less digits than its factorization.

145620270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618016 (or 1618013 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 145620270 is about 12067.3224039138. The cubic root of 145620270 is about 526.1068349356.

The spelling of 145620270 in words is "one hundred forty-five million, six hundred twenty thousand, two hundred seventy".