145764870 has 32 divisors (see below), whose sum is σ = 350401248. Its totient is φ = 38807808.

The previous prime is 145764847. The next prime is 145764943. The reversal of 145764870 is 78467541.

It is a super-2 number, since 2×145764870² = 42494794652233800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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, 16722 + ... + 23898.

It is an arithmetic number, because the mean of its divisors is an integer number (10950039).

Almost surely, 2^145764870 is an apocalyptic number.

145764870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145764870 is an abundant number, since it is smaller than the sum of its proper divisors (204636378).

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

145764870 is a wasteful number, since it uses less digits than its factorization.

145764870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7864.

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 145764870 is about 12073.3123044175. The cubic root of 145764870 is about 526.2809175720.

The spelling of 145764870 in words is "one hundred forty-five million, seven hundred sixty-four thousand, eight hundred seventy".