145405402124 has 6 divisors (see below), whose sum is σ = 254459453724. Its totient is φ = 72702701060.

The previous prime is 145405402123. The next prime is 145405402139. The reversal of 145405402124 is 421204504541.

It is a super-2 number, since 2×145405402124² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145405402123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18175675262 + ... + 18175675269.

It is an arithmetic number, because the mean of its divisors is an integer number (42409908954).

Almost surely, 2^145405402124 is an apocalyptic number.

It is an amenable number.

145405402124 is a deficient number, since it is larger than the sum of its proper divisors (109054051600).

145405402124 is a wasteful number, since it uses less digits than its factorization.

145405402124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36351350535 (or 36351350533 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 145405402124 its reverse (421204504541), we get a palindrome (566609906665).

The spelling of 145405402124 in words is "one hundred forty-five billion, four hundred five million, four hundred two thousand, one hundred twenty-four".