145011251 has 32 divisors (see below), whose sum is σ = 193840128. Its totient is φ = 105114240.

The previous prime is 145011239. The next prime is 145011253. The reversal of 145011251 is 152110541.

It is not a de Polignac number, because 145011251 - 2¹⁸ = 144749107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145011253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64421 + ... + 66633.

It is an arithmetic number, because the mean of its divisors is an integer number (6057504).

Almost surely, 2^145011251 is an apocalyptic number.

145011251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

145011251 is a deficient number, since it is larger than the sum of its proper divisors (48828877).

145011251 is a wasteful number, since it uses less digits than its factorization.

145011251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 145011251 is about 12042.0617420772. The cubic root of 145011251 is about 525.3723749708.

Adding to 145011251 its reverse (152110541), we get a palindrome (297121792).

The spelling of 145011251 in words is "one hundred forty-five million, eleven thousand, two hundred fifty-one".