145388735 has 4 divisors (see below), whose sum is σ = 174466488. Its totient is φ = 116310984.

The previous prime is 145388731. The next prime is 145388821. The reversal of 145388735 is 537883541.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145388735 - 2² = 145388731 is a prime.

It is a super-2 number, since 2×145388735² = 42275768529800450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145388731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14538869 + ... + 14538878.

It is an arithmetic number, because the mean of its divisors is an integer number (43616622).

Almost surely, 2^145388735 is an apocalyptic number.

145388735 is a deficient number, since it is larger than the sum of its proper divisors (29077753).

145388735 is an equidigital number, since it uses as much as digits as its factorization.

145388735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29077752.

The product of its digits is 403200, while the sum is 44.

The square root of 145388735 is about 12057.7251171189. The cubic root of 145388735 is about 525.8278518810.

The spelling of 145388735 in words is "one hundred forty-five million, three hundred eighty-eight thousand, seven hundred thirty-five".