145236225401 has 16 divisors (see below), whose sum is σ = 151859232000. Its totient is φ = 138777667200.

The previous prime is 145236225383. The next prime is 145236225451. The reversal of 145236225401 is 104522632541.

It is a cyclic number.

It is not a de Polignac number, because 145236225401 - 2²² = 145232031097 is a prime.

It is a super-2 number, since 2×145236225401² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145236225451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 544775 + ... + 766323.

It is an arithmetic number, because the mean of its divisors is an integer number (9491202000).

Almost surely, 2^145236225401 is an apocalyptic number.

It is an amenable number.

145236225401 is a deficient number, since it is larger than the sum of its proper divisors (6623006599).

145236225401 is a wasteful number, since it uses less digits than its factorization.

145236225401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221920.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 145236225401 its reverse (104522632541), we get a palindrome (249758857942).

The spelling of 145236225401 in words is "one hundred forty-five billion, two hundred thirty-six million, two hundred twenty-five thousand, four hundred one".