145022970 has 32 divisors (see below), whose sum is σ = 351441792. Its totient is φ = 38296512.

The previous prime is 145022963. The next prime is 145022989. The reversal of 145022970 is 79220541.

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

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 20377 + ... + 26556.

It is an arithmetic number, because the mean of its divisors is an integer number (10982556).

Almost surely, 2^145022970 is an apocalyptic number.

145022970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145022970 is an abundant number, since it is smaller than the sum of its proper divisors (206418822).

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

145022970 is a wasteful number, since it uses less digits than its factorization.

145022970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47046.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 145022970 is about 12042.5483183585. The cubic root of 145022970 is about 525.3865271440.

The spelling of 145022970 in words is "one hundred forty-five million, twenty-two thousand, nine hundred seventy".