145644575290 has 16 divisors (see below), whose sum is σ = 262465443360. Its totient is φ = 58190006160.

The previous prime is 145644575273. The next prime is 145644575291. The reversal of 145644575290 is 92575446541.

It is a super-2 number, since 2×145644575290² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145644575291) 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, 8468976 + ... + 8486155.

It is an arithmetic number, because the mean of its divisors is an integer number (16404090210).

Almost surely, 2^145644575290 is an apocalyptic number.

145644575290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145644575290 is a deficient number, since it is larger than the sum of its proper divisors (116820868070).

145644575290 is a wasteful number, since it uses less digits than its factorization.

145644575290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16955997.

The product of its (nonzero) digits is 6048000, while the sum is 52.

It can be divided in two parts, 14564 and 4575290, that added together give a palindrome (4589854).

The spelling of 145644575290 in words is "one hundred forty-five billion, six hundred forty-four million, five hundred seventy-five thousand, two hundred ninety".