145420100 has 36 divisors (see below), whose sum is σ = 360643584. Its totient is φ = 49858080.

The previous prime is 145420069. The next prime is 145420111. The reversal of 145420100 is 1024541.

145420100 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 2×145420100² = 42294010968020000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103172 + ... + 104571.

Almost surely, 2^145420100 is an apocalyptic number.

145420100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145420100 is an abundant number, since it is smaller than the sum of its proper divisors (215223484).

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

145420100 is a wasteful number, since it uses less digits than its factorization.

145420100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207764 (or 207757 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 145420100 is about 12059.0256654508. The cubic root of 145420100 is about 525.8656617905.

Adding to 145420100 its reverse (1024541), we get a palindrome (146444641).

The spelling of 145420100 in words is "one hundred forty-five million, four hundred twenty thousand, one hundred".