145113550 has 12 divisors (see below), whose sum is σ = 269911296. Its totient is φ = 58045400.

The previous prime is 145113517. The next prime is 145113557. The reversal of 145113550 is 55311541.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145113557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1451086 + ... + 1451185.

It is an arithmetic number, because the mean of its divisors is an integer number (22492608).

Almost surely, 2^145113550 is an apocalyptic number.

145113550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145113550 is a deficient number, since it is larger than the sum of its proper divisors (124797746).

145113550 is a wasteful number, since it uses less digits than its factorization.

145113550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2902283 (or 2902278 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 145113550 is about 12046.3085632072. The cubic root of 145113550 is about 525.4958882267.

The spelling of 145113550 in words is "one hundred forty-five million, one hundred thirteen thousand, five hundred fifty".