145356870 has 32 divisors (see below), whose sum is σ = 353640672. Its totient is φ = 38230272.

The previous prime is 145356857. The next prime is 145356881. The reversal of 145356870 is 78653541.

It is a super-2 number, since 2×145356870² = 42257239312393800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 30997 + ... + 35376.

It is an arithmetic number, because the mean of its divisors is an integer number (11051271).

Almost surely, 2^145356870 is an apocalyptic number.

145356870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145356870 is an abundant number, since it is smaller than the sum of its proper divisors (208283802).

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

145356870 is a wasteful number, since it uses less digits than its factorization.

145356870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66456.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 145356870 is about 12056.4036926440. The cubic root of 145356870 is about 525.7894336621.

The spelling of 145356870 in words is "one hundred forty-five million, three hundred fifty-six thousand, eight hundred seventy".