145322150421 has 32 divisors (see below), whose sum is σ = 224622637056. Its totient is φ = 81849600000.

The previous prime is 145322150417. The next prime is 145322150423. The reversal of 145322150421 is 124051223541.

It is not a de Polignac number, because 145322150421 - 2² = 145322150417 is a prime.

It is a super-2 number, since 2×145322150421² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145322150423) 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, 6670296 + ... + 6692046.

It is an arithmetic number, because the mean of its divisors is an integer number (7019457408).

Almost surely, 2^145322150421 is an apocalyptic number.

It is an amenable number.

145322150421 is a deficient number, since it is larger than the sum of its proper divisors (79300486635).

145322150421 is a wasteful number, since it uses less digits than its factorization.

145322150421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26313.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 145322150421 its reverse (124051223541), we get a palindrome (269373373962).

The spelling of 145322150421 in words is "one hundred forty-five billion, three hundred twenty-two million, one hundred fifty thousand, four hundred twenty-one".