145388700 has 54 divisors (see below), whose sum is σ = 455715624. Its totient is φ = 38770080.

The previous prime is 145388671. The next prime is 145388707. The reversal of 145388700 is 7883541.

It is a super-2 number, since 2×145388700² = 42275748175380000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145388707) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 79872 + ... + 81671.

Almost surely, 2^145388700 is an apocalyptic number.

145388700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145388700 is an abundant number, since it is smaller than the sum of its proper divisors (310326924).

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

145388700 is a wasteful number, since it uses less digits than its factorization.

145388700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161563 (or 161553 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 145388700 is about 12057.7236657671. The cubic root of 145388700 is about 525.8278096862.

The spelling of 145388700 in words is "one hundred forty-five million, three hundred eighty-eight thousand, seven hundred".