145420404152 has 64 divisors (see below), whose sum is σ = 282384960000. Its totient is φ = 70162049664.

The previous prime is 145420404113. The next prime is 145420404223. The reversal of 145420404152 is 251404024541.

It is a super-2 number, since 2×145420404152² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15549974 + ... + 15559322.

It is an arithmetic number, because the mean of its divisors is an integer number (4412265000).

Almost surely, 2^145420404152 is an apocalyptic number.

It is an amenable number.

145420404152 is a deficient number, since it is larger than the sum of its proper divisors (136964555848).

145420404152 is a wasteful number, since it uses less digits than its factorization.

145420404152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9940 (or 9936 counting only the distinct ones).

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

Adding to 145420404152 its reverse (251404024541), we get a palindrome (396824428693).

The spelling of 145420404152 in words is "one hundred forty-five billion, four hundred twenty million, four hundred four thousand, one hundred fifty-two".