145719270 has 64 divisors (see below), whose sum is σ = 396887040. Its totient is φ = 38028384.

The previous prime is 145719239. The next prime is 145719271. The reversal of 145719270 is 72917541.

It is a happy number.

145719270 is a `hidden beast` number, since 14 + 571 + 9 + 2 + 70 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145719271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6949 + ... + 18431.

It is an arithmetic number, because the mean of its divisors is an integer number (6201360).

Almost surely, 2^145719270 is an apocalyptic number.

145719270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145719270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198443520).

145719270 is an abundant number, since it is smaller than the sum of its proper divisors (251167770).

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

145719270 is a wasteful number, since it uses less digits than its factorization.

145719270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11546 (or 11540 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 145719270 is about 12071.4236939973. The cubic root of 145719270 is about 526.2260325764.

The spelling of 145719270 in words is "one hundred forty-five million, seven hundred nineteen thousand, two hundred seventy".