145888770 has 32 divisors (see below), whose sum is σ = 365357952. Its totient is φ = 37212032.

The previous prime is 145888733. The next prime is 145888819. The reversal of 145888770 is 77888541.

It is a super-2 number, since 2×145888770² = 42567066424225800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105027 + ... + 106406.

It is an arithmetic number, because the mean of its divisors is an integer number (11417436).

Almost surely, 2^145888770 is an apocalyptic number.

145888770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145888770 is an abundant number, since it is smaller than the sum of its proper divisors (219469182).

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

145888770 is a wasteful number, since it uses less digits than its factorization.

145888770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211466.

The product of its (nonzero) digits is 501760, while the sum is 48.

The square root of 145888770 is about 12078.4423664643. The cubic root of 145888770 is about 526.4299881021.

The spelling of 145888770 in words is "one hundred forty-five million, eight hundred eighty-eight thousand, seven hundred seventy".