145974570 has 32 divisors (see below), whose sum is σ = 400387968. Its totient is φ = 33365568.

The previous prime is 145974559. The next prime is 145974571. The reversal of 145974570 is 75479541.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (145974571) 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 15 ways as a sum of consecutive naturals, for example, 347349 + ... + 347768.

It is an arithmetic number, because the mean of its divisors is an integer number (12512124).

Almost surely, 2^145974570 is an apocalyptic number.

145974570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145974570 is an abundant number, since it is smaller than the sum of its proper divisors (254413398).

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

145974570 is a wasteful number, since it uses less digits than its factorization.

145974570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695134.

The product of its (nonzero) digits is 176400, while the sum is 42.

The square root of 145974570 is about 12081.9936268813. The cubic root of 145974570 is about 526.5331690877.

The spelling of 145974570 in words is "one hundred forty-five million, nine hundred seventy-four thousand, five hundred seventy".