145422660 has 24 divisors (see below), whose sum is σ = 407183616. Its totient is φ = 38779360.

The previous prime is 145422611. The next prime is 145422661. The reversal of 145422660 is 66224541.

It is a super-2 number, since 2×145422660² = 42295500082951200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (145422661) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1211796 + ... + 1211915.

It is an arithmetic number, because the mean of its divisors is an integer number (16965984).

Almost surely, 2^145422660 is an apocalyptic number.

145422660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145422660 is an abundant number, since it is smaller than the sum of its proper divisors (261760956).

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

145422660 is a wasteful number, since it uses less digits than its factorization.

145422660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2423723 (or 2423721 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 145422660 is about 12059.1318095458. The cubic root of 145422660 is about 525.8687475817.

The spelling of 145422660 in words is "one hundred forty-five million, four hundred twenty-two thousand, six hundred sixty".