145521053004 has 24 divisors (see below), whose sum is σ = 339672718000. Its totient is φ = 48489361344.

The previous prime is 145521052973. The next prime is 145521053009. The reversal of 145521053004 is 400350125541.

It is not an unprimeable number, because it can be changed into a prime (145521053009) 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, 2172679 + ... + 2238654.

Almost surely, 2^145521053004 is an apocalyptic number.

It is an amenable number.

145521053004 is an abundant number, since it is smaller than the sum of its proper divisors (194151664996).

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

145521053004 is a wasteful number, since it uses less digits than its factorization.

145521053004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4414089 (or 4414087 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 145521053004 its reverse (400350125541), we get a palindrome (545871178545).

The spelling of 145521053004 in words is "one hundred forty-five billion, five hundred twenty-one million, fifty-three thousand, four".