145503151321 has 8 divisors (see below), whose sum is σ = 158753995488. Its totient is φ = 132256188000.

The previous prime is 145503151303. The next prime is 145503151327. The reversal of 145503151321 is 123151305541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145503151321 - 2⁹ = 145503150809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145503151327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 891535 + ... + 1042036.

It is an arithmetic number, because the mean of its divisors is an integer number (19844249436).

Almost surely, 2^145503151321 is an apocalyptic number.

145503151321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145503151321 is a deficient number, since it is larger than the sum of its proper divisors (13250844167).

145503151321 is a wasteful number, since it uses less digits than its factorization.

145503151321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1940423.

The product of its (nonzero) digits is 9000, while the sum is 31.

Adding to 145503151321 its reverse (123151305541), we get a palindrome (268654456862).

The spelling of 145503151321 in words is "one hundred forty-five billion, five hundred three million, one hundred fifty-one thousand, three hundred twenty-one".