145101550 has 24 divisors (see below), whose sum is σ = 294425352. Its totient is φ = 52764000.

The previous prime is 145101547. The next prime is 145101553. The reversal of 145101550 is 55101541.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (145101547) and next prime (145101553).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145101553) 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 11 ways as a sum of consecutive naturals, for example, 131361 + ... + 132460.

It is an arithmetic number, because the mean of its divisors is an integer number (12267723).

Almost surely, 2^145101550 is an apocalyptic number.

145101550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145101550 is an abundant number, since it is smaller than the sum of its proper divisors (149323802).

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

145101550 is a wasteful number, since it uses less digits than its factorization.

145101550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263844 (or 263839 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 145101550 is about 12045.8104750158. The cubic root of 145101550 is about 525.4814027325.

Subtracting from 145101550 its reverse (55101541), we obtain a palindrome (90000009).

The spelling of 145101550 in words is "one hundred forty-five million, one hundred one thousand, five hundred fifty".