145421610 has 16 divisors (see below), whose sum is σ = 349011936. Its totient is φ = 38779088.

The previous prime is 145421603. The next prime is 145421623. The reversal of 145421610 is 16124541.

It is a happy number.

145421610 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145421610² = 42294889309984200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2423664 + ... + 2423723.

It is an arithmetic number, because the mean of its divisors is an integer number (21813246).

Almost surely, 2^145421610 is an apocalyptic number.

145421610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145421610 is an abundant number, since it is smaller than the sum of its proper divisors (203590326).

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

145421610 is a wasteful number, since it uses less digits than its factorization.

145421610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4847397.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 145421610 is about 12059.0882739948. The cubic root of 145421610 is about 525.8674819295.

The spelling of 145421610 in words is "one hundred forty-five million, four hundred twenty-one thousand, six hundred ten".